The Aiming Annoyance (glitch?)

Hey-o, I'm Cap'nKeeb.

I have an issue with the crosshair setup. While aiming, my crosshair is subject to a wild pitch. With a perfectly drawn bead on my enemy, sometimes, it will reset and trace an enemy I don't care about right then. I have moved the target lock icon and this has prevented this problem substantially. So, i am aware the target lock button being activated can cause this. I use that lock function to key advantage for the most part. Its while holding a target in my sights and lining up a shot, that this target lock feature lights up and chooses a new tArget right before shooting. Or just resetting and bouncing around my screen stupidly. It is highly irritating and has caused many deaths, sometimes lost battles for the whole team. Especially on a 1vs1 for the win final death scenario. Please help