For a universal performance boost, use: -high -USEALLAVAILABLECORES -nosplash -preferredprocessor [X] (Replace X with your physical core count).
: If the game crashes, remove -NOTEXTURESTREAMING first. ✅ Final Recommendation
Paste your desired string (e.g., -high -USEALLAVAILABLECORES ). ⚠️ Important Considerations
While command line arguments won't replace a GPU upgrade, they can significantly reduce background overhead and optimize how the Unreal Engine handles resources.
The most effective command line argument for boosting performance is: -high -USEALLAVAILABLECORES -nomansky -nosplash 🛠️ Core Optimization Commands
: Not every game uses Unreal Engine; check PCGamingWiki for game-specific flags.
These arguments target the rendering pipeline to squeeze out extra frames. -d3d12 : Forces DirectX 12 (better for newer hardware). -d3d11 : Forces DirectX 11 (better for older hardware).
Use these to force the game to prioritize CPU resources and skip heavy startup animations. -high : Sets CPU priority to high. -USEALLAVAILABLECORES : Forces use of all CPU cores. -nosplash : Skips the loading splash screen. -nomansky : Disables high-quality sky effects (UE games). -lanplay : Can reduce network-related stuttering. 🖥️ Graphical & Engine Tweaks