Simplify your project One of the biggest causes of stutter and lag when using After Effects is having a lot of compositions and layers. This combined with the use of effects and 3D camera work can seriously slow down your compositions and render times.
Why after effects so slow?
Once you use other software like Silhouette you will see normal performance for compositing. These are modern software packages that take advantage of modern computers. The reason after effects is unreasonably slow is because its software from the 90s and hasnt really been upgraded to modern standards.
Why does after effects run so slow on my computer?
If you run applications other than those with which After Effects shares a memory pool, and you don’t allocate adequate memory to other applications, performance can be greatly reduced when the operating system swaps RAM to the hard disk. Stop or pause resource-intensive operations in other applications, such as video previews in Adobe Bridge.
After Effects must use memory and processor resources to update open panels, which may slow the work that you are doing in another panel. Create a region of interest. If you are working on a small part of your composition, limit which portion of the composition is rendered to the screen during previews. See Region of interest (ROI).
Why is my screen redraw speed so slow in after effects?
When After Effects displays the Composition, Layer, and Footage panels at magnifications greater than 100%, screen redraw speed decreases. (See Zoom an image for preview .).
Why are my previews so slow in AutoCAD?
Animate your layers and do other work that requires real-time previews before you apply memory-intensive or processor-intensive effects (such as glows and blurs), which may make previews slower than real time. Temporarily turn off effects to increase the speed of previews.