Since we currently pay a price (jank) each time a new shader is used, and since some animations end up using a lot of new shaders, one option would be to use less specialized shaders.

If we had a static set of shaders, we could asynchronously compile them on program startup, so that by the time the application runs an animation we can use this static set and not stutter while we prepare a new one.

Medium term we could also determine what specialized shaders we would want to use in each scene, and compile them in the background so that the next time, if all the specialized shaders we would want to use are ready, we could just use them. That way we get the long-term sustained performance benefits of specialized shaders and the short-term smooth start performance benefits of a static shader set.