Hmm, scrolling lags even without javascript (Firefox ESR, Linux). Last time I saw this I think they fix was something about gradients/blur?
There's also some kind of weird input-capture stopping keyboard scrolling at first, and the video player is some weird thing I can't see how to make work.
There's also some kind of weird input-capture stopping keyboard scrolling at first, and the video player is some weird thing I can't see how to make work.