To achieve a "GTA 4 look" without crashing a PC with limited VRAM or an older CPU, modders typically combine the following lightweight tools:
Always duplicate your game folder before applying mods, as many graphics overhauls require overwriting original files. gta-4-graphics-for-gta-sa-low-pc-2022
Instead of overwriting files, use Modloader to easily enable or disable specific graphical tweaks. To achieve a "GTA 4 look" without crashing
Several community-curated packs were highlighted throughout 2022 for their stability on "potato" PCs: gta-4-graphics-for-gta-sa-low-pc-2022
Even "low-end" mods can reduce frame rates by 7–10 FPS depending on your specific hardware configuration.
A 7.79 MB pack available on LibertyCity that replaces standard environmental effects with assets inspired by GTA IV.