ADS Sensitivity is not the same on all Guns

Been struggling with this since the game first came out. Thought at first it was inconsistant mouse lag, as the mouse would feel really jagged some rounds. But today I picked up a longbow right after dropping and could not for the life of me hit anything with the ironsights. Tested a few sights and noticed the ADS sens was way off. 
Please fix this. Apex is the first shooter I'm really struggeling with, unless I pick up the same weapon and use the same sight every round.

Edit: Read somewhere that the ADS ratio should be closer to 1.2 in order to keep things consistant, but that does not help with the sights being different as well, adding even more inconsistancy.