In the same boat as you, man. I also don't have Afterburner or RTSS installed, so disabling them is not an option.
My only "fix" has been to go through all my programs and disable anything that remotely resembles an in-game overlay. Even then, it's inconsistent; I will sometimes get the issue and sometimes not.
Try to do the same, then hop into the firing range first, and see if you have the issue. If you do, nuke the game and try again. This has been the only way I have been able to play.
That’s what iI’ve been doing too. Checking the firing range first. Yesterday I had two sessions in the first everything was normal but in the second I had issues with pressing S.
