Windows Fullscreen Optimization Disable - _best_

However, if you are a streamer or someone who constantly Alt+Tabs out of modern single-player games, leaving it on might provide a smoother desktop experience. There is no universal "right" answer—only what works for your specific hardware and game library.

Introduced with Windows 10, FSO represents a fundamental shift in how the Desktop Window Manager (DWM) handles game rendering. While Microsoft intended it to improve the user experience, for competitive gamers and purists, it has become a frequent target for disabling. windows fullscreen optimization disable