Make Sure you have the latest graphics drivers for your graphics card!
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For AMD Graphics cards drivers needed are Catalyst 14.4.
For Nvidia Graphics cards drivers needed are GeForce 335.23.

Adding Antialiasing to your game!
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If you wish to Enable Multisampling Antialiasing (MSAA) in your game you will need to find the Executable and right click it and Select Properties. Add the following to the end of the "Target" field:
+r_multisamples 4 (Enter a value 2-16 depending on what appeals to you.)

Skip Intro Videos at Games launch!
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Find the Executable and right click it and Select Properties. Add the following to the end of the "Target" field:
+com_skipIntroVideo 1

Bad Performance In the Game!!
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Disable The Screen Space Reflections setting and you should see a huge increase in frame rates.

Reducing The Shadow Resolution can Increase performance in your Frame Rates. Halving this from 8196 to 4098 can see huge performance gains up to 50% as well.
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Graphic tweaks for Optimal Performance.
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Display Mode: Fullscreen.

Monitor: 1.

Resolution: default.

Vertical Sync: Disabled. Game seems to work better with this option turned disabled.

FOV: Set it to 100. Anything lower than 100 and you may experience texture popping, the textures will appear with delay when you turn around. Even if you set it to 100, it won’t affect the framerate.

Advanced Options button.

VT Cache size: high.

VT Compress: enabled.

Max PPF: 16.

Shadow Resolution: 2048.

Depth of Field: medium.

Screen-Space Reflections: Disabled.

Additional quality settings: Medium.

Haze Flare: Disabled. Performace may go down with this option being enabled.

Hope this Helps!!!