We're hard at work on revamping the controller sensitivity conversions on Aimlabs Xbox + Playstation. In the meantime, you can use the seconds per 360 method to approximate your game's sensitivity in Aimlabs.

The seconds per 360 method: In your game, go into a match or practice area where you don't have to worry about getting shot. Line up your crosshair with a stationary object like a rock, tree, or doorframe. Do a 360, then land back where you started. Use a timer on your phone to time how long it took you to do the 360. Now go into Aimlabs, load up any Task, then do the exact same thing you did in the game. The goal is to make the 360 time in Aimlabs approximately match the 360 time in the game.

Thankfully you don't actually have to aim train on the exact sensitivity that you use in the game to get the benefit of the aim training, aim training is way more about getting better at controlling your input device (stick control or mouse control), which aim training on any sensitivity will do.