In my experience it's surprisingly fast. Egui doesn't need to redraw when it's idling, only when you're interacting with it (mouse move) or it's animating somet

In my experience it's surprisingly fast. Egui doesn't need to redraw when it's idling, only when you're interacting with it (mouse move) or it's animating something so IMO it's not a big deal. I have to admit that I've only tested it on high-end laptops/phones though. Not sure about mid/low-end ones yet.