[krisha]

I also have similiar issues with mouse lag on win7 x64:

sporadic long mouse stuck
Mouse cursor freezes on a position for 1-2 seconds. Maybe the complete screen is freezing during this time. Moving the mouse is still possible but will only be shown after the delay on screen. Happens sporadic and not so often.

predictable short mouse stuck
Hovering mouse over buttons that change the background color or changing of the cursor form (text, arrow, hand) during movement let the mouse cursor stuck for some milliseconds at the position. After the delay mouse is shown at the correct position.

For both issues it does not matter if I connect my mouse to the USB hub of displaylink or directly to the PC. The mouse cursor on the native screen is never affected. Mouse trails do not help.