Overlay
Also searched as: overlay · on screen display · osd · in-game overlay
What it means
The little stats or panel drawn on top of your game — an FPS counter, a Discord pop-up, a performance graph. It floats over the picture without being part of the game.
More detail
Some overlays draw the safe way, alongside the game; older ones hook into it more invasively, which can clash with anti-cheats or cost a few frames. Compy's overlay draws over borderless and windowed games but not exclusive-fullscreen ones, because it never injects. If a game stutters only with an overlay on, that overlay is the suspect.
The Compy Blackbook holds 174 graded entries like this one, judged against your hardware — and every change it does make is reversible, with the receipt to prove it.
See Compy →