Help I want to train my aim

I've recently been playing a lot of modded pvp but I am noticing that I suck at tracking the players, so I wanted to practice in aim lab but I don't understand unturned system for calculating the sensitivity can someone pls help me. I use corsair ironclaw on 1500 dpi, and borderless 1920x1080(120hz). I will show my settings with some screenshots.

https://preview.redd.it/549xz1yu95pd1.png?width=435&format=png&auto=webp&s=3866dfd3865774053d624077395019d2a46447f9

https://preview.redd.it/0p4l3mev95pd1.png?width=506&format=png&auto=webp&s=c908196348cb9e17ce3d9b9fc7133f92f1fd0e79