Disable Full |best|screen Optimizations Globally -

Windows Registry Editor Version 5.00

Borderless Windowed mode. For many, it was a hero, allowing instant alt-tabbing and sleek overlays like the volume slider to appear over games. But for others—the competitive gamers and the keepers of older software—it was a source of stuttering, input lag, and frame-pacing woes. The Conflict: Why Silence the "Optimizations"? The trouble began because Fullscreen Optimizations actually hands control back to the disable fullscreen optimizations globally

If it doesn't exist, right-click > > DWORD (32-bit) Value and name it accordingly. Restart your PC for changes to take effect. Method 2: The Precise Approach (Per-App) Windows Registry Editor Version 5