Standard FiveM installs contain high-resolution textures and visual effects that low-end PCs cannot process.
First, it's important to understand that FiveM is fundamentally more demanding than standard GTA V. Unlike the single-player campaign or even GTA Online, FiveM servers pack dozens of custom assets, MLO interiors, vehicles, and hundreds of server scripts that significantly increase CPU and disk I/O. Each custom asset adds to the streaming demand on your disk and VRAM, while each script adds CPU work for AI, event handling, and network processing. Servers with 32 to 128 players push update frequency and entity counts far beyond typical scenarios.