Rocket league changing when restart epic games or restart pc

My problem is that Rocket League changes almost every time I restart it. Namely, input lag changes and sometimes the gameplay is faster and sometimes slower, it's like the camera is moving more and sometimes not (I don't adjust the stiffness), graphics glitches. I'm wondering if anyone else has this type of problem with the game? I'm not adjusting anything and I've tried a lot of troubleshooting. I haven't really tried other games because I don't have that much time, but I'll try it with another one. I suspect it's not my computer that's bad. So I'd be interested to see if anyone else has experienced this, because I can't find a similar problem online.
Pc specs:
-ASUS B660M Plus wifi d4
-I5-12400f
-DDR4 4000MHz Trident Z (from qvl list)
-Rtx 3070Ti
-750W Coolermaster MPE-7501-ACABW
-Kingston 1Tb ssd
-Windows 11 24H2 (now)
-Windows 10 (I tried with)
-Dell G2723H
-Irid 503 argb V2: intel stock fan (cpu), 3 front and 1 back.

Tried:
-another gpu driver (now 366.36)
-DP and HDMI cable...

Read more

windowsforum.net