I honestly have no idea. It does so much that I don't know where you'd start - but I suspect that's also the problem.

I remember seeing a demo of React Canvas a few years ago - basically, recreating a "DOM" of sorts inside a canvas tag - and the performance was crazy. Beautiful 60fps touch interactions. But, of course, it only does a tiny subset of what the DOM does. I'm still waiting for a good reason to use it myself to try out how the API feels.

I feel the same. Dunno wth we gonna do but we need something more performant.