DPI is the standard used to measure the mouse sensitivity, expressed as the number of DPIs (dots per linear inch) that a device can detect. By changing the DPI, you can instantly adjust pointer speed for precision tasks, such as in-game targeting or photo editing. The greater the number of DPIs, the higher the mouse sensitivity, and the faster the pointer speed. Some mouse models include dedicated buttons (DPI On-the-fly buttons) you can use to instantly adjust your mouse sensitivity (DPI).
Change mouse sensitivity (DPI) settings
If your mouse has DPI on-the-fly buttons, press one of the DPI On-the-fly buttons to create new settings for each DPI button. The mouse LCD will briefly display the new DPI setting.
If your mouse doesn’t have DPI on-the-fly buttons, start Microsoft Mouse and Keyboard Center, select the mouse you are using, click basic settings, locate Sensitivity, make your changes.