photoshop workspace greyed out when window not selected

just updated to the most recent version (7/1/2020). I switch between windows a lot during work and when I don't have the photoshop window directly selected i.e. i have browser open in front, it greys out the workspace. it's a bit jarring visually.... i'm not sure how to correct it. i thought it was a preview issue, but i don't think it is. halp? 

UPDATE - messed with performance settings and changed GPS , Drawing Mode to Normal and it fixed it.