Try these:
0) Update to windows 8.1. Its free
1) Update drivers, Windows updates, , and latest version of Visual C++
2) Make sure under Power Management in Windows you're running in High Performance, and are plugged in to power. Also set a high performance profile under Catalyst Control center
3) Use the OpenGL backend on one of the latest dev builds, as it is faster than D3D. The current dev build is 4.0-706
0) Update to windows 8.1. Its free
1) Update drivers, Windows updates, , and latest version of Visual C++
2) Make sure under Power Management in Windows you're running in High Performance, and are plugged in to power. Also set a high performance profile under Catalyst Control center
3) Use the OpenGL backend on one of the latest dev builds, as it is faster than D3D. The current dev build is 4.0-706


