Denuvo Anti-Tamper is designed to prevent piracy, but it has a notorious side effect: CPU overhead. Hitman 2 uses a notoriously aggressive implementation of Denuvo combined with VMProtect. Every time the game loads a new level (Miami, Santa Fortuna, Mumbai, etc.), the DRM decrypts and validates hundreds of triggers. On mid-range or older CPUs, this causes:
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If your frame rate dips in crowded areas (like Miami or Mumbai), lower the "Simulation Quality" setting in the graphics menu. This reduces the physics load on your CPU. Denuvo Anti-Tamper is designed to prevent piracy, but