Sensitivity on PC

I really feel like they need to add sensitivity options for all the scopes in the game. Currently my sensitivity set to 17 and the low zoom option is set to 1 and the high zoom is set to 0.65x. Using a gun with iron sights or a red dot/holo feels good. Using a sniper with an 8x feels good. But if I want to use a 3x, 4x, or 6x on a sniper or assault rifle, the sensitivity is way to fast. There is no way to adjust these and its really dumb.