Performance performance performance
There is no greater feature you can give us than performance. AE does not take great advantage of multi-core processors. Rendering is quite slow. Playback is slow compared to Fusion and other packages. While there are definitely improvements, it seems the focus at Max is always on new features.
AE has plenty for features through plugins and scripts. What I want from AE is a speed and stability.
A faster, more stable product will improve more workflow better than 1000 new features.
Andrew Cheyne commented
I can't agree with you more - performance & stability is our top priority - keep your eyes out for news on what is coming in the areas of performance over the next few months. We've actually made some great strides in stability recently and hope you're already reaping benefit from those efforts - still more to do but we're getting there.
There have been a series of blog posts talking about some of the changes we've been making to get to a better spot for all of this - here is the latest one: https://blog.adobe.com/en/drafts/migrated/2020/06/16/june-2020-adobe-video-audio-performance-report.html#gs.966v47
Andrew Cheyne, After Effects Engineering
Matt Lathrom commented
As a quick add-on, note the audience reaction to the Content Aware Fill presentation. He had to scream YES to get a clap. This encapsulates it. Performance and stability > New features