
In your main comp, you have a pre-comp of the same 1920 x 1080 px resolution. To explain, say you have a Main Composition that is 1920 x 1080 px. We’ve put it to the test to prove that using pre-comps that are sized correctly are beneficial performance-wise when put up against full-res pre-comps.

Pre-comp sizing is an important factor that is often overlooked when creating projects in After Effects.

Here at Grizzle, we’ve found a few workarounds and fixes to get your render previews back up to speed and fix a slow preview in After Effects. Even with a unit of a PC/Mac, things can run slow it takes no prisoners whether you’ve got 8GB or 64GB of RAM. Slow Preview in After Effects? Here are 5 TESTED tips to fix it.Īfter Effects, although a powerhouse of a program, does have its downfalls especially when it comes to previewing what you’ve produced in your various compositions and layers.
