Glossary:Mouse acceleration
Mouse acceleration is a setting provided by the operating system to augment the distance at which the mouse moves. When enabled, the cursor on screen will move a farther distance depending on how fast the mouse is moved. For example a person who slowly moves the mouse from one corner of the mousepad to the other may only see the cursor move a few inches on screen, while someone who quickly flicks the mouse in the same way might see the cursor jump from one end of the screen to the other.
This setting is sometimes used to counteract a mouse with low sensitivity. A mouse with low sensitivity and mouse acceleration disabled may require multiple swipes across the mouse pad to move a longer distance. That same mouse with mouse acceleration enabled may only require one swift swipe to cover that same distance.
While the setting is a personal choice, it is recommend that you disable mouse acceleration to provide a more consistent aim in more competitive titles.
If you want to be able to move the mouse around the screen with fewer swipes without enabling mouse acceleration, it is recommend that you pickup a gaming mouse with a high DPI sensor. This allows for the ability to move farther while keeping the cursor movement consistent.