[JulianGarnier]

No I didn't, and you're right, GSAP perf looks amazing under your stress test! But I think it's a little bit unfair to compare performance on one test case. Anime was designed to offer more control on a single animation (like specific timings and easings by properties / elements) to avoid running multiple RAF at the same time (which is exactly what your test does), and keep the compact as possible. Having 300 dom elements changing their top/left properties wasn't really my goal when I started working on Anime.

[GreenSock]

Hm, I don't recall seeing multiple RAFs in that demo. GSAP is all driven by a single one. And yes, I totally agree that nobody should place too much weight on just one performance test. I always advocate people doing their own tests which is why I was wondering if you had one that showed anime matching/exceeding GSAP's speed. No big deal, though. Just curious. Congrats again!