If you are a computer gamer, you will need to buy a gaming mouse to get the most out of the game. There are many factors you need to take into consideration when you are finding a gaming mouse. DPI on a mouse can be affected by several factors. One is the surface that you’re using the mouse on. If you use a mouse on a very smooth surface, you’ll need a higher DPI to move the cursor across the screen. Another factor is mouse acceleration. If you have mouse acceleration on, you’ll need a lower DPI to move the cursor across the screen, which means you have to move the mouse further.