Hi, yes, I have that problem too. I often catch myself doing that, especially on Mirage, when I come out of the connector on mid. I've been killed because I couldn't see the enemy behind my weapon. It's very frustrating and unpleasant. But I found a solution, 
how to change hands in Counter-Strike 2 on vredux, everything is described there, and it works perfectly. There are several ways to do it, you can choose the one that is more convenient for you. Now, if I know roughly where the enemy is, I just switch the weapon to the other side and quickly take it out. I hope I was able to help you, because I myself searched for a solution for a long time.