I doubt you are going to find a solution. Most standard wireless USB HID devices (keyboards/mice) should just work out of the box. Occasionally there is one which won't, but looking for a different driver won't change anything unless the device is, e.g., an elaborate gaming mouse (in which case you may never find a driver, since most manufacturers do not provide one).
Unless the system is heavily taxed at the same time this happens (have a look at CPU usage in
top or something), this sounds like radio interference. You could try replacing the batteries in the mouse with new ones. If they are already new, you are out of luck; you will have to try a different mouse.