Investigate input event smoothing
https://twitter.com/hergertme/status/1216944988849750016
I'm personally sceptical about this, because:
- That particular issue is clearly related to drawing
- I personally have very negative experience with smooth scrolling in WebKit, it just makes scrolling laggy and delayed here.
- Builder gesture feels very laggy here compared to the ones that don't use smoothing, just like WebKit scrolling compared to GtkScrolledWindow.
That said, I can only talk about touchpads here, so maybe it would help specifically with touchscreen.