:

However : For the single-player "The Lost and Damned" and "The Ballad of Gay Tony" – it is 100% safe and highly recommended.

By using the GTA IV Pro Fixer, you can:

Open the plugins folder created by FusionFix and locate the GTAIV.EFLC.FusionFix.ini configuration file.

Press Win + R on your keyboard, type gpedit.msc , and hit .

GTA IV relies heavily on CPU single-core performance due to its outdated DirectX 9 implementation. Modern multi-core processors sit idle while one core bottlenecks the system.

-nomemrestrict & -norestrictions : Disables the game's artificial limits on graphics settings.

is not a simple mod; it is a comprehensive patch suite developed by veteran modder "Pro-Modder" (aka FixerPro ). Released in late 2023 and updated as recently as August 2024, it aims to solve every major flaw of Grand Theft Auto IV (Version 1.0.7.0 and 1.0.8.0) and Episodes from Liberty City (EFLC).