>>9313787Depends on sens and DPI settings, it may have more or less impact on performance. Either way, it's like playing with Aim Assist on in the sense that you don't know if that's your real performance or not.
Think of it as trying to click something on the far end of the screen but you shoot all the way to the corner when you meant to stop precisely.
People who play with mouse acceleration on know what they're doing and have a specific playstyle, it's not that it improves or weakens a person's play it's personal preference and most would like to know if they're precise with their aim or overdoing their movements unnecessarily.