I know it's an old game but i bought it some time ago and i finally got the chance to play it.
Sadly any AMD settings or features won't work with this game. Strangely if i open performance overlay(ctrl+shift+o) and I close the game it shows up like it's running "behind" the game.
I tried the "disable full screen enhancements", running as administrator and verifying game cache.
I also tried running the "NoSteam" executable and the in-game "borderless" setting.
Any help is appreciated.