Initially, when we faced this issue, we thought that it might be a driver issue. So we updated the display adapters, but it made no difference in the situation. The issue is the resultant of nasty frame rate-aliasing effects since there is less refresh rate for the monitor. To fix this problem, you can try the following fix:

Dragging window not smooth in Windows 11/10

  1. Press Windows Key + R combination, type put Regedt32.exe in Run dialog box and hit Enter to open the Registry Editor.

  2. Navigate to the following location:

  3. In the right pane of this location, right-click on the blank space and select New -> String Value. Name this newly created string as C:\Windows\explorer.exe where C: is essentially the system root drive. Now double click on the same string to modify its Value data:

  4. Put the Value data to NoDTToDITMouseBatch. Click OK. You may now close Registry Editor. Now open the administrative Command Prompt and paste the following command there followed by Enter key:

Finally, reboot the system, and your issue should be fixed by now. I hope this helps! This post explains the Windows Explorer Drag and Drop behavior, which sure makes an interesting read.

Dragging window not smooth slow and shows lag in Windows 11 10 - 79