If anyone has downloaded a driver lately from the Nvidia site ,please make sure to go into Nvidia Control Panel and set up it correctly,my game now not only looks stunning on medium setting but also runs a smooth as a Swiss clock .
"global settings"
Ambient occlusion=OFF
Anisotropic filtering=Application controlled
Antialiasing-FXAA=OFF
Antialiasing-Gamma correction=OFF
Antialiasing Mode=Application Controlled
Antialiasing-Transparency=OFF
Cuda-GPUs=ALL
DSR Factors=OFF
Maximum pre - rendered frames=USE 3D APPLICATION SETTING
Monitor Technology=FIXED REFRESH
Multi -Frame- Sampled -AA=OFF
Open GL Rendering =GTX,,,,,,,,
Optimise compute performance=OFF
Power Management Mode=PREFER MAXIMUMPERFORMANCE
Preferred Refresh Rate=HIGHEST AVAILABLE
Shader Cache=ON
Texture filtering-Anisotropic Sample Optimisation=OFF
Texture filtering- LOD Bias =ALLOW
Texture Filtering Quality=HIGH PERFORMANCE
Texture Filtering Trilinear Optimisation =ON
Threaded Optimisation =ON
Triple Buffering=OFF
Vertical Sync= USE 3D APPLICATION SETTING
Virtual Reality Pre -Rendered Frames= 1

"I HOPE SOME OF THIS BASIC INFO CAN HELP"