Extra pixel in CSGO sight

Faced the problem of an extra pixel, I don't think that the problem is in the monitor (BENQ XL2411p), I updated the drivers for the GtX1050 video card, updated everything and reset the Monica settings, maybe this is a trifle, but for me as a player who spends a lot of time playing the game, this is very It is very striking, it becomes somehow uncomfortable, if someone has come across and knows how to solve this problem, please unsubscribe.
In fact, I will briefly explain that when choosing a sight of any left risk will be longer than the right one, it turns out to be disproportionate, it can also depend on the "GAP" of the sight, in general, thanks in advance for your help!