: Modern versions of GTA 4 (Complete Edition) are poorly optimized for older hardware. Downgrading to Version 1.0.7.0 or 1.0.4.0 is highly recommended to improve performance and enable better compatibility with optimization mods.
: Low/Medium (Medium may cause stuttering on 1GB RAM; stick to Low if needed). Shadow Quality : Off. : Modern versions of GTA 4 (Complete Edition)
: Off (Turning these off significantly reduces lag). : Modern versions of GTA 4 (Complete Edition)