Why the hell is ADS set to maintain pixel ratio (read. every weapon has different sensitivity).
You released the game for PC so you should respect that PC players expect some core features that are in (almost) every game released on PC. I understand that this is your first PC game, and you are coming from console where 3/4 of everyone's 'skill' comes from aim assist, but on PC where people actually have skill and muscle memory it matters a lot. It's not impossible... but it's really annoying, and disrupting. It takes me around 3 times longer to acquire a target in destiny as oppose to other games. And it will take literally 5 minutes to a single person to fix that. You will have to alter like 3 lines of code.
And you also need to add a percentage (of rotation speed) modifier for ADS, that can be set accurately (eg. 27%).
And if you wan't to keep also the current setting as an option just add a "Enable pixel ratio for ADS" option in settings. But there is really no point in that cause everyone who knows what is does will disable it.