I have the config to native and disabled framerate limit. I am running Windows 7 Ultimate 64 bit
Processor: Intel(R) Core(TM) i7 CPU Q 740 @ 1.73GHz (8 CPUs), ~1.7GHz
Memory: 4096MB RAM
Available OS Memory: 4076MB RAM
Page File: 3459MB used, 4692MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
User DPI Setting: Using System DPI
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
Diag Version: 6.01.7601.17514 32bit Unicode