Is something bricked with editor’s performance.
I get fps drops from 120 to 15 - 45, even worse when i had editor at 240 fps.
Hold right mouse, rotate camera for 0.5s, move mouse again on screen = large fps drop related to HitproxyReadback.
There was similar high function usage related to HitproxyReadback in 5.4 but its even worse now.
Edit: Some new things i noticed
- In game/compiled performance is improved
- but editor itself suffers from above mentioned thing. Going from 4 ms (240 fps) or 8 ms (120 fps) to 16 - 32 ms (15 fps or so) due to HitproxyReadback in editor