Mafia: Definitive Edition – Tweak Guide (Boosting FPS, Fixing Crashes, Visuals)

This is tweak guide (boosting fps, fixing crashes, visuals) in Mafia: Definitive Edition.

Tweak Guide

Boosting FPS

Unlock FPS + Refresh Rate

  • Turn vsync off in display settings to unlock the fps
  • Disable fullscreen optimizations on main exe file to unlock refresh rate (Steam>steamapps>common>Mafia Definitive Edition>mafiadefinitiveedition.exe)
  • If ^ doesn’t work then turn off fullscreen and change to windowed, then turn borders off to get fullscreen borderless mode

Note: Many of the graphical settings in my personal experience required a restart or even 2 to even have it take effect, this confused me a ton at first.


Crash On Startup

  • Launch the game using “mafiadefinitiveedition.exe” located in the folder stated previously which will bypass the launcher, once in game disable the launcher.

Guide to Visuals


  • Turn off Motion Blur, DOF, and put Anti-Aliasing on Low if you want to improve the clarity.
  • If you have the NVIDIA overlay you can also use Alt+F3 to try to use filters such as sharpening to make things more crisp.

Note: If you have a very old graphics card don’t expect to be able to run this game, I’m talking to the several people posting about their GTX 560TIs, GTX 750TIs, etc. It is time to upgrade, you can literally get a card far better for even less then $200…

Hopefully, there will be many more to come and potential dev patches and mods by the community. I will try to update this for a while to help people out, also I might add screenshots to show comparisons. Please feel free to share your fixes in the comments and I will try to add them. Good luck! 🙂

By ZeRo シ

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