Unless you have an older dedicated Nvidia card, go into the game folder and rename the Apex folder to Apex_Back . This drastically boosts FPS on modern systems without losing much visual detail.

For the smoothest experience, use your GPU control panel to cap the game at 60 FPS, as the physics engine can go haywire at higher refresh rates. The Modern Alternative: Mafia II: Definitive Edition

Even with the best fix, modern hardware can sometimes be too fast for the old engine.

: Issues with NVIDIA PhysX that caused the game to fail during launch or mid-gameplay.

Modern GPUs often struggle with the legacy PhysX files included in the original install. How to Apply the Final Fixes