For fellow PC raiders who struggle aiming with controllers: use gyro !!
I just got a steam controller and i switched to gyro aiming, but you can use whatever you got as long as youre on pc, its quicker and easier to control aim, it takes some time to get used to it, take it easy it'sa process, but once you learn i feel it can be a game changer!
As much as i tweaked settings and sensitivity in game i always felt my aim was so clumsy...gyro is way better than standard sticks if you use a controller . Closer to mnk but you can also play it on the couch and not sitting necessarily.
Steam input makes it easier to handle the editing part plus there lots of great presets made my the community, like FSV ones, also check out flickstick videos on youtube, that dude is a genius i swear. This guide helped me so much https://www.youtube.com/watch?v=rOybuNm9XR8&t=629s
Try it, dont be afraid.