maybe the game locks to 24fps if it runs in the background after alt tabbing, and then when i give it focus again it fails to switch to foreground fps. in this case a solution would be to let it run with full fps in background too, mazbe its unlockable in a config file…
ok i have found a fix, i just tried installing one driver before 387.92, which is 385.69.
after this the bug is no more, also theres not so mucm improvement from 385.69. to 387.92, so as a temporary fix this works for me. just wanted to let ppl know.