gta iv fusion fix download

How to Download and Install FusionFix 5.1 for GTA 4 (Huge FPS Boost)

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GTA 4 FusionFix 5.1 install guide

Install GTA 4 FusionFix 5.1 the safe way from GitHub. Step by step guide to fix stuttering and boost FPS to 76-86 on Very High settings.