If you have a 144Hz, 165Hz, or 240Hz monitor, the game’s engine will freak out. It thinks time is moving too fast.
Does it work? If yes, skip to Part 5 (Optimization). If no, proceed to Part 3. hitman sniper challenge not working in windows 10
Let’s start with the solution that works for the vast majority of users. This forces the game to use the correct rendering path. If you have a 144Hz, 165Hz, or 240Hz
If you are reading this, you are likely tearing your hair out. Do not worry. This is not a hardware problem; it is a compatibility war between a 2012 DirectX 9/10 hybrid game and a 2026 operating system. If yes, skip to Part 5 (Optimization)
While still in Properties > General, uncheck "Enable the Steam Overlay while in-game" .
-dx9
Go to > Settings (under Performance) > Data Execution Prevention .