it's not a good port, it struggles to keep stable fps above 30. Set in-game fps to 30 do the same with the deck's fps limiter that way it runs just fine. You would have to lower the fps to 30 at some point to avoid some game breaking issues that happen with higher fps anyway. Set R1 button to "toggle" in Steams controller menu for a better stealth experience

Not an optimized port - set to 30 fps