Problems with Zoom after new installation

Hello guys, I installed warthunder again cause I got a new SSD.
I bound the key “Zoom in” onto my RMB like every normal people did.
The thing is that my zoom is zooming in fully after like 1,5 seconds and with that disadvantage i will loose every battle cause my reaction with that is slowed…

Does someone got the same problem and knows how to solve it?