- Lower the resolution. This will help your game move at a more productive speed.
- Turn off or reduce advanced visual features of your game. Some of these that might significantly improve performance are shutting down DirectX 10 features.
- Reduce, or eliminate, the games anti-aliasing level. Yeah, the edges will be jagged, but your CPU will love you for it!
- Reduce the level of anisotropic filtering. What this does is reduce the quality of textures in the game that are viewed at an oblique level.
- If you can, try switching from high dynamic range lighting to bloom lighting
from wikihow.com
