It’s like simplified graphics presets. There’s a system wide setting (though not every game that has the options follows it) to prefer either performance or better graphics, and devs are supposed to target a stable 60FPS on performance mode, but can crank up the graphics settings on the other mode.
What is performance mode?
Usually standard graphics at 60fps instead of ray tracing and stuff at 30fps
It’s like simplified graphics presets. There’s a system wide setting (though not every game that has the options follows it) to prefer either performance or better graphics, and devs are supposed to target a stable 60FPS on performance mode, but can crank up the graphics settings on the other mode.