CS2 POSSIBLE STUTTERING FIX FOR AMD GPUS.
Disable Multi-Plane Overlay
1. Open regedit
2. Go here HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\Dwm
3. Right click on the right, at the empty space and click on NEW -> DWORD32 VALUE.
4. Name it OverlayTestMode and set the value to 5 like shown. Then reboot.