Hello, thanks for the help guys; When i first plugged the mouse into my USB port, the mouse was already slow. I then went into control panel to increase the speed to the maximum, and it was still slow! Then, i installed the latest software for it from Microsoft website. The software did not make a difference. I'm not sure what the DPI of the mouse is, but im sure that's the problem. Since this is a basic mouse, it was probably meant for lower resolution monitors.