Most custom game config downloads include different presets based on the amount of traffic and NPCs you want. For example:
The audio configuration section of the gameconfig.dat file contains several parameters that control the game's audio output. These parameters include: Gta 5 Gameconfig 1.0.231.0
[Vanilla Constraints] [Custom Gameconfig 1.0.231.0] - Rigid Memory Pool Bounds ---------> Expanded Memory Sub-allocators - ~5 Add-on Car Capacity -----------> 300+ Custom Vehicles Allowed - Strict Streamer Limits ------------> High-fidelity Map & Script Support Core Memory Pools Adjusted Most custom game config downloads include different presets