I am not sure if this will help or not but make sure all of your palettes are either docked or turned off - not free-floating or on a second monitor.
I know this can effect 2D performance.
And make sure there is no program called 'GeForce Experience' running - uninstall it if you do have it.
Barry.
One of the forum moderators.
Versions 6.5 to 27
i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11