In GTA Mode, use a beast machine to enhance your vehicle's performance.
In GTA Mode, use a beast machine to enhance your vehicle's performance.
Your custom-built PC runs smoothly until you spawn objects, after which performance drops significantly. The issue likely stems from GPU usage rather than CPU limitations. You have an Intel 4790K at 4.4GHz and an MSI GTX 980 Ti with only 1% utilization—this suggests your setup is underpowered for Garry’s Mod. To force the game to use your GPU, consider adjusting settings like "Use My GPU" in the game options or using a dedicated GPU driver if available. If you're using a different GPU, ensure it's properly connected and drivers are up to date.
The issue is likely tied to the Source engine running on Windows 10, which is a known concern.