A high DPI certainly has its advantages when playing FPS games. You can track fast-moving targets more easily. It becomes easier to flick to a target quickly and make turns swiftly. Playing at a high DPI also makes it easier to keep your aim consistent across different monitor resolutions. However, a high DPI does have the drawback of reduced precision while aiming. This is why it is recommended in FPS games to use a lower DPI, leading to more accurate aiming.