Hi,
I am developing a new SwiftUI app. Running under OSX, I see very high cpu usage (I am generating lots of gpu based updates which shouldn't affect the cpu).
I have used the profiler to ensure my swift property updates are minimal, yet the cpu usage is high coming from SwiftUI.
It seems the high cpu usage is coming from NSAppearance, specifically, CUICopyMeasurements - for a single button??? But the swift updates don't show any buttons being updating