Thank you for info! I will check how can I optimize overall performance.
Probably I missed something heavy but useless or at leas will be able to improve to playable grade.
P.S. Sorry for misleading "CPU Utilization=high", it's actually physics FPS, low=30, high=60. Low may be more stable in this case, but still - I need to fix overall performance, now I see that even main menu on intel 6200U is 50FPS which is BS level of optimization. My bad.