The Corsair M55 RGB Pro’s performance is very good. It has a wide CPI range that can be customized inside its software. You can also switch its polling rate between 125-250-500-1000Hz. However, its lift-off distance is noticeably higher than most gaming mice, which is sub-par. Also, the mouse seems to overshoot with slow movement and undershoot with fast movement, which averages out at an excellent CPI error. This isn’t ideal for users as the sensitivity changes when using the mouse at different speeds, which is unwanted.