Troubleshoot

How to make After Effects preview and render faster

Updated 2026-11-03 · by the mouzeclick team

To make After Effects run faster, first check your computer against Adobe's system and GPU driver requirements for your version. Then use Multi-Frame Rendering, which Adobe says lets After Effects use multi-core CPUs for both previews and exports. Send finished comps to the Render Queue or Adobe Media Encoder. Change one setting at a time, and time the same test before and after.

Adobe says Multi-Frame Rendering lets After Effects use multi-core CPUs for faster preview and export rendering.
There are two render routes: the Render Queue inside After Effects, or Adobe Media Encoder outside it.
Media Encoder can run presets, watch folders and destination publishing, and it can also transcode and create proxies.
Adobe has separate requirement pages for GPU drivers, for Apple Silicon, and for versions 24.x and 25.x.
mouzeclick does not change render speed. It puts After Effects shortcuts on mouse buttons on Windows and Mac. Its workspace panel is Windows only.

Why does After Effects feel slow, and where do you start?

Start by splitting the problem in two: slow previews while you work, and slow renders when you export. The fixes are different, so time each one before you change anything.

We checked Adobe's own pages for this guide on 3 November 2026. Those pages confirm four things:

Multi-Frame Rendering exists.
You can render through the Render Queue or Media Encoder.
Media Encoder has automation features.
Adobe publishes hardware requirement pages.

The detailed settings on Adobe's performance pages were not in the text we could verify. So this page does not print cache sizes, RAM figures or preference names. Where Adobe publishes the detail, we link to the page so you can read it for your version.

We make mouzeclick, a mouse app with a set of After Effects panels. It shows up near the end in a section labelled as ours. It does not make After Effects render faster, and we don't claim it does.

The method matters more than any single tip:

Pick one comp that feels slow. Note how long a preview of a fixed stretch takes, and how long a test render of the same stretch takes.
Change one thing: a driver, a render route or a setting.
Run the identical test again and write the number down.
Keep the change only if the number moved. Undo it if it didn't.

Change three things at once and you won't know which one helped, or which one made things worse. A short notes file with the date, the change and the two timings is enough.

Does your computer meet the After Effects requirements?

Check this first. Adobe publishes a page of the minimum specifications a computer must meet to install, run and use After Effects. If your machine falls below that line, start there before you change any setting.

Adobe splits the hardware detail across several pages, all linked in the sources below:

System requirements: the main page of minimum specifications.
GPU and GPU driver requirements: a separate page for your graphics card and its driver.
After Effects for Apple Silicon: a page for Macs with Apple chips.
Earlier versions: Adobe keeps separate requirement pages for After Effects 25.x and 24.x. On an older machine, you can compare what each version expects.

Work through it in order:

Note which After Effects version you run.
Open the requirement page that matches that version: the current page, or the 25.x or 24.x page.
Compare your CPU, memory and storage against it.
Open the GPU and GPU driver page and compare your graphics card and driver against it.
On a Mac with an Apple chip, read the Apple Silicon page too.

We don't copy the numbers here. The requirement text was not part of what we could verify on 3 November 2026, and the figures differ by version. Read them on Adobe's pages, for the version you actually have installed.

How do I make After Effects preview faster?

Use Multi-Frame Rendering. Adobe describes it as a way for After Effects to use multi-core CPUs for faster preview rendering, not only for exports. The gain comes from the cores your CPU has.

Adobe's Multi-Frame Rendering page also lists:

support for previews
export through Adobe Media Encoder
an updated Render Queue with remote notifications

Read that page for how it is set up in your version. We could not verify its settings, so we don't repeat them.

A practical order for preview speed:

Fix the hardware gaps first. Bring your GPU driver in line with Adobe's GPU and driver page before you touch anything inside the app.
Read the release notes. Adobe's What's new page covers the latest release, including performance improvements and bug fixes. It was last modified on 18 September 2026. If your version is older, check whether a change there matches your problem before you update.
Set up Multi-Frame Rendering as Adobe's page describes for your version, then time your preview test again.
Shorten what you preview while you work. A preview of the two seconds you are animating finishes sooner than the whole comp. This is plain arithmetic, not a setting.

Previewing is also full of small, repeated commands that you reach for while a frame catches up. The section on mouse buttons below covers giving those a keyboard shortcut, and then a button.

How do I make After Effects render faster?

Render with Multi-Frame Rendering on a multi-core CPU, and pick the right route for each job. Adobe says Multi-Frame Rendering improves export rendering as well as previews. After Effects renders through the Render Queue inside the app, or through Adobe Media Encoder outside it.

The Render Queue

The Render Queue is After Effects' own export panel. Adobe's rendering basics page covers the Render Queue panel, Media Encoder and the supported output formats. Our After Effects export settings guide covers what to pick for MP4 and YouTube.

Adobe Media Encoder

Media Encoder is Adobe's separate encoding app, available only in Creative Cloud. Adobe says it can ingest, transcode, create proxies and output to almost any format. Adobe lists these features for repeat work:

Presets, so you set an output once and reuse it.
Watch folders, which process files you drop into a folder.
Destination publishing.
Time Tuner, which adjusts duration.
LUTs and loudness corrections applied without reopening the project.

If you export the same deliverables every week, those features remove repeat setup. Adobe does not say on the pages we checked that Media Encoder is faster than the Render Queue. Time both on your own comp.

Codec choice for intermediates

Your next step may need a QuickTime file. Adobe documents the GoPro CineForm codec for creating, using and exporting QuickTime files in both After Effects and Media Encoder. Adobe publishes no speed figure for it, so treat it as an option to test, not a promise.

One tool of ours helps when one comp has to go out in several sizes. mouzeresize makes 9:16, 1:1, 4:5, 4:3, 16:9, 21:9 or custom versions and sends them to the Render Queue. It runs on Windows and Mac. It doesn't change render speed. It saves building each size by hand.

What does Adobe document for performance? (checked 3 November 2026)

Here is what Adobe's own pages confirm for preview and render speed, and where to read each item. We checked them on 3 November 2026.

Item	What Adobe says	Preview or render	Where to read it
Multi-Frame Rendering	Uses multi-core CPUs for improved preview and export rendering	Both	Multi-Frame Rendering help page
Render Queue	Outputs your content right inside the app	Render	Rendering and exporting basics
Adobe Media Encoder	Renders outside After Effects. It has presets, watch folders, destination publishing and proxies	Render	Media Encoder product page
GoPro CineForm codec	Creates and exports QuickTime files in After Effects and Media Encoder	Render	CineForm codec settings page
System requirements	Minimum specifications to install, run and use the app. There are separate pages for 25.x and 24.x	Both	Technical requirements pages
GPU and driver requirements	A separate page for graphics cards and drivers	Both	GPU requirements page
Apple Silicon	A separate page for Macs with Apple chips	Both	After Effects for Apple Silicon
Release notes	Latest release, with performance improvements and bug fixes (page modified 18 September 2026)	Both	What's new in After Effects

Cache, memory and preview-quality settings are not in this table. They are not missing from After Effects. They were not in the Adobe text we could verify, and we don't fill gaps from memory.

How do I make After Effects faster on a low-end PC?

On a low-end PC, start with the requirement page for your exact version. If you are below the minimum, sort that out before you tune anything else. Then work on drivers and how you render, in that order.

Match the version to the machine. Adobe keeps separate requirement pages for 25.x and 24.x as well as the current one. Read the one that matches what you have installed.
Check the graphics driver. Compare your graphics card and driver against Adobe's GPU and GPU driver page.
On a Mac, read the Apple Silicon page if your Mac has an Apple chip.
Count your cores. Multi-Frame Rendering gains come from multi-core CPUs, so a CPU with few cores has less to work with.
Move heavy outputs to Media Encoder if that suits your workflow. Its presets and watch folders cut repeat setup, and it can create proxies. Time it against the Render Queue before you switch for good.
Keep your tests clean. Close what you don't need while you time a test, so the numbers reflect After Effects and not a browser full of tabs.

Thinking about new hardware? Adobe's After Effects trial works on Windows, macOS and iPadOS. Adobe gives you 14 days after the trial ends to cancel for a full refund. That is time to run the same timed test on a borrowed or new machine.

The same steps apply to Premiere. Our guide to making Premiere Pro run faster covers it.

What should I check when After Effects is still slow?

Go back to the last thing that changed: a driver, a version or something newly installed. Check one item at a time:

Driver. Is your GPU driver still within Adobe's GPU and driver requirements after a system update?
Version. Did After Effects update? Read the What's new page for that release, and check the requirement page for that version.
New add-ons. If the project was quicker before you installed something, take it out and run your test again. Our explainer on plug-ins, scripts and extensions shows which file types live where. The plug-in install guide shows how to put one back.
Render route. Try the other route: Render Queue if you used Media Encoder, or the reverse. Time both.
Another machine. Open the same project on a second computer. If it is quick there, the project is fine and the first machine is the problem.
Mac startup error after editing shortcuts. On Mac OS X 10.9 or later, editing the After Effects keyboard shortcuts file in TextEdit causes an error the next time After Effects starts. Adobe's fix is to turn off Smart Quotes. This is a startup error, not a speed problem. It matters if you edit that file to set up the shortcuts in the next section.

Write each result in your notes file. After three or four checks the pattern is usually clear.

How do I put purge and preview commands on mouse buttons?

First give the command a keyboard shortcut in After Effects. Then map that shortcut to a mouse button. This works for any command you reach for while previewing, such as purge, draft or preview-resolution commands, as long as it has a shortcut. Any mouse remapper can then send the keys.

The native way: a keyboard shortcut first

After Effects keeps its shortcuts in a keyboard shortcuts file. Our guide to changing After Effects keyboard shortcuts walks through assigning one. Our full After Effects shortcut list shows the defaults by task. On a Mac, turn off Smart Quotes before you edit that file in TextEdit, as Adobe advises.

Then a mouse button, with mouzeclick

Install mouzeclick on Windows 10 or 11, or on macOS 12 or newer. The Mac install steps cover the one-time Open Anyway and the Accessibility and Input Monitoring permissions.
On first run, press each mouse button once. The settings page is then built around the buttons your mouse has.
Pick the After Effects profile. Buttons work per app, so Mouse 4 can send a shortcut you set in After Effects and do something else in your browser.
Choose a slot. Each button has eleven: tap, hold and move in four directions, a chord with another button, or hold and scroll.
Record the shortcut you set in After Effects, or chain keys, clicks and waits into a macro.

If you run out of buttons, the Options wheel (F8) holds 48 favourites per app on three rings. Keys and macros can go there too.

The built-in library holds 309 shortcuts on Windows, 44 of them for After Effects, ready to drop on a button or the wheel. Any shortcut you set yourself goes on a button the same way.

For a general walkthrough, see remapping mouse buttons on Windows or on a Mac.

Where mouzeclick fits (we make it)

mouzeclick saves trips to menus. It does not change how fast After Effects previews or renders. Here is what it adds for this job, and where each part runs.

Mouse app, Windows and Mac. Per-app buttons, gestures, hotkeys, macros and three wheels on any mouse your computer sees, with no driver. It never touches DPI, polling rate or the mouse's firmware.
After Effects Tool wheel, Windows and Mac. 114 tools in 13 groups, opened with F10 or a held right button. Each action is one undo step. It needs the bridge, installed once from the app's Tool wheel page. Our After Effects radial menu page has the details.
The After Effects workspace, Windows only. Its status bar has an autosave countdown and a RAM gauge. The workspace holds 800+ tools, presets and templates on Windows. See the all-in-one After Effects extension page or the workspace atlas. The Mac app does not include the workspaces.

A few limits to know before you install:

mouzeclick needs an internet connection while it runs. If the connection drops, the shortcuts pause and the mouse acts normally.
On Windows, Ctrl+Alt+F12 stops mouzeclick at once.

The trial is 3 days, with no card, and every After Effects tool works fully during it. After that it is $25 a month, $249 a year, or $499 once for one of the first 100 lifetime keys. See pricing.

Put your After Effects shortcuts on your mouse, free for 3 days. One plan with everything included, $25 a month, or $249 for a year.

See the price

Questions people ask

Does Multi-Frame Rendering speed up previews or only exports?

Both. Adobe says Multi-Frame Rendering lets After Effects use multi-core CPUs for faster preview rendering and export rendering. Adobe's page also lists export through Media Encoder and an updated Render Queue with remote notifications. How much it helps depends on your CPU, and Adobe publishes no single speed-up figure. Time the same preview and the same test render before and after you set it up.

Is Media Encoder faster than the After Effects Render Queue?

Adobe does not say so on the pages we checked on 3 November 2026. What Adobe does say is that Media Encoder renders outside After Effects. It also adds presets, watch folders, destination publishing, proxies, and LUT and loudness corrections without reopening the project. Render the same thirty seconds both ways on your machine and keep the faster route for that kind of job.

How do I optimize After Effects for best performance on a laptop?

Start with Adobe's requirement pages for your version, then the GPU and GPU driver page. On a Mac with an Apple chip, read the After Effects for Apple Silicon page too. After that, set up Multi-Frame Rendering and time a test comp. Laptops vary widely in cores and graphics, so your own before-and-after numbers matter more than any general tip.

Will updating After Effects make it faster?

Sometimes, but check first. Adobe's What's new page covers the latest release, including performance improvements and bug fixes. It was last modified on 18 September 2026. Read whether a listed change matches your problem, and check the requirement page for the new version against your hardware. Adobe keeps separate pages for 25.x and 24.x, so an older machine can compare versions before updating.

Is Media Encoder included with the After Effects single app plan?

Adobe's Media Encoder page says it is available only in Creative Cloud. The plan pages we checked don't name it in the single-app list, so plan-level detail is not published there. As shown on 3 November 2026, After Effects alone was US$22.99/mo on the annual, billed monthly plan in the US, and ₹733.96/mo including GST, annual, billed monthly, in India.

Which codec renders an intermediate file fastest in After Effects?

Adobe publishes no speed ranking on the pages we checked. It does document the GoPro CineForm codec for creating, using and exporting QuickTime files in both After Effects and Media Encoder. That makes CineForm worth testing when your next step needs a QuickTime intermediate. Render the same stretch in each candidate codec and compare time and file size yourself.

Can a mouse app make After Effects render faster?

No. A mouse app sends keystrokes. It doesn't change how After Effects uses your CPU or GPU. What it can do is put the commands you reach for during a slow preview on buttons, so you stop digging through menus. mouzeclick does this per app on Windows and Mac, once each command has a keyboard shortcut in After Effects.

Can I test After Effects on a new computer before I buy one?

Yes, with Adobe's trial. Adobe says the After Effects free trial works on Windows, macOS and iPadOS, and you have 14 days after the trial ends to cancel for a full refund. Copy your slowest project to the new machine. Run the same timed preview and render tests you ran on your current one, then compare the numbers.

Sources

Checked on 2026-11-03. Prices and features change: each link goes to the maker's own page.