Limitation with controller settings enables unfair play
The aiming mechanics of the game is intended to help controller players in some situations, but work directly against them in other situations because opponents take advantage of these limitations and abuse it to their advantage.
Because controller players have a limited yaw speed of 500, its easy for other players to take advantage of this limitation because you can just push up against them with any weapon and just dance around them and they may be unable to track or even find you.
And on top of that because controller players have a slowdown box on the enemy, tracking for controllers becomes even slower.
Also ADAD spamming is a fairly cheesy and an easy low skilled strategy to throw off their aim and makes controller players unable to track you or even hit you at a range where it should be fairly easy for them to do so with normal response time, but the slowdown works agains the controller player and makes it unreasonably hard to track.