Blender 2.8 UI performance regression since 2.79


I’ve noticed that in 2.8, when I go to user preferences, drag the display scale (DPI) slider and start dragging it around fast like crazy, it lags behind my input a bit, and is not as smooth. In 2.79, if I drag the same slider and start moving it back and forth, shaking my mouse, it’s completely instant - no delay and super smooth framerate.

Now I know that 2.8 does more things UI wise, but UI performance is one of the main reasons I love Blender and I would not like it going the Autodesk direction. So it’d be good to check if 2.8 UI drawing is slower for a reason, and it’s not a consequence of some forgotten bloat in an unpolished piece of code :slight_smile: