Run the check
Move at a steady pace across the mouse test area and note gaps.
Repeat on a plain matte surface with background load reduced.
Compare wired or direct USB connection with the original setup.
Read the result
Stutter that follows one surface differs from pauses across the whole computer.
Limits and next step
A browser trail also pauses when its own tab is not scheduled.
Repeat the check after changing one setting or connection. Keep a record of what changed before deciding whether the device needs service.