To turn off animations in Windows 11 and improve system responsiveness:
Press Windows + I to open Settings.
Go to Accessibility > Visual effects.
Toggle off Transparency effects. (Optional)
Toggle off Animation effects.
The change applies immediately—no restart needed.
Press Windows + R, type SystemPropertiesPerformance, and press Enter.
Under Visual Effects, choose:
Adjust for best performance (disables all animations).
You will want to enable "Smooth edges of screen fonts" otherwise text will be ugly.
Click Apply > OK.