Make your mouse faster
Moving wildly and uncontrollably?
Clean it. Open it up, and spend a few minutes cleaning the ball, as well as the 3 rollers that have accumulated all that dust from you rolling it for the past few weeks or months. Trust me, it helps a lot.
Mouse moving too slowly?
Change it in the settings. Go to the Start Menu, then Settings, then Control Panel, then go to the Mouse one. Change the speed to the fastest. It may seem weird for an hour or so, but you will get used to it. After you get used to it, slow mice will annoy you forever more cause you are moving faster and can handle the speed.
Main thing that helps you with speed is not making your mouse faster. It's learning to use your keyboard, such as hitting "Page Up" or "Page Down", or using the arrow keys to move up and down a page, rather than using your mouse to scroll up or down. Or using the "tab" button to navigate, rather than using your mouse to click on things.