Have you experienced a slow and jumpy cursor while using a Magic Mouse or other Bluetooth input device on your Mac? Admittedly, this may not apply to all of you, but if you’re like me and use a Magic Mouse with a MacBook Pro, you may have encountered this maddening issue.
The problem has to do with choppy, laggy, jumpy, and overall slow mouse performance while using a Bluetooth mouse. There are some things that you can do to troubleshoot, but I took all of the obvious steps, and still could not alleviate the issue. That is, until I realized that an unlikely culprit was causing my problems.