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I have a solution for the annoying issue you may encounter when using a Raspberry Pi with a USB mouse (both wired and wireless) where the mouse movement seems either jerky, laggy, erratic, slow, laggy etc.

What you need to do is take the SD card out of the Pi and put it into your main computer, and then open the BOOT partition, then look for a file named:


You will see a line in that file, what we need to do is add the following to the END of that line. NOT on a new line. It must be at the end of the line:


Save, and safely unmount or eject the SD card. Pop that back into the Pi and boot up, you should have nice mouse movement now :)