Lag/delay onto second screen with latest nvidia drivers

[thefrog]

This may or may not have anything to do with your issue however it does appear that your nvidia settings display is missing stuff. Here is a look at myne

Looking at this I would say your not using nvidia driver but amd

@roselove

Display: x11 server: X.Org v: 21.1.8 compositor: xfwm v: 4.18.0 driver: X:
    loaded: amdgpu,nvidia unloaded: modesetting alternate: fbdev,nouveau,nv,vesa
    dri: radeonsi gpu: amdgpu display-ID: :0.0 screens: 1

try the optimus manager again.