FPS are locked since unreal engine 5

i have a question and i cant really find a solution for this since months. my fps are capped on 60 which is fine i have 60hz. but every time there is a single window or pop up open it gets halved to exaclty 30 fps. as soon as i close it. (can be even the autosave popup) its back to 60 instantly. with every window opend the fps cap goes lower. i cant find anything in the internet abt this but this is really making it drop to beyond unsuable when i have 3-4 windows open or an autosave pops up

here are the fps per window opend

1 = 60 fps
2 = 30 fps
3 = 20 fps
4 = 15 fps