Just Bought The Game, Question about Aiming

Hey all, just bought the game on ps5 since it was on sale. Why is the vertical aiming sensitivity so much slower than the horizontal? And why is the sensitivity still a tad slow even when it’s maxed out at 10? Has there been any talks about the adding more options from the devs? Just curious cause it just feels a tad bit sluggish coming from the devs who made The Division.

EDIT - Here's a link me demostrating what it looks like. I have the right stick fully tilt the entire time. This is the only game that does this. Aiming sensitivity is at 10.

https://www.youtube.com/watch?v=Tpg6Jusm_-w