For some reason devoid of any logic, aim assists slows your aim to an unusable level if they’res an enemy anywhere on your screen.
The most notable problems with this come when you’re trying to shoot moving targets with a sniper or Jakob’s assault rifle. I have my ADS sensitivity at 7, and I can’t track a varkin that’s just slightly moving side to side, because my aim is always a foot off and too slow to ever get on target.
This is the only game I’ve ever played that I’ve felt the need to turn aim assist off. The entire point of aim assist in video games is to make it easier to keep your reticle on target by slowing it when you’re on target - not slowing it when you’re off target.