Optimizing Unreal Engine 5 Games with SCSKiller

To eliminate lag in Unreal Engine 5 games, the SCSKiller utility is available. The program is free and distributed as an open-source solution.

The tool works by pre-compiling shaders into the driver cache. This prevents stutters when preparing subsequent game scenes.

The utility automatically detects games from Steam, Epic Games Store, and Xbox. After a driver update, the program can repeat the graphics preparation process.

SCSKiller supports Windows operating systems with NVIDIA and AMD video cards. It works via DirectX 12, while NVIDIA offers a DirectX 11 mode.

Testing on the RTX 5090 video card showed significant performance growth:

• Star Wars Jedi: Survivor — lag reduction from 9038 to 11
• Hogwarts Legacy — reduction from 1014 to 87
• Final Fantasy VII Rebirth — complete elimination of lag (from 19 to zero)