貌似8/20有出一份更新
Below are some of the major fixes and improvements you can expect in the upcoming patch:

• Reduced frame rate hitches
• Optimized system memory and VRAM usage
• Improved performance on all GPUs (requires the latest drivers)
o Min Spec AMD GPU is once again the Radeon HD 7870 2GB

• More Robust In-Game Settings, including:
o Added the ability to change settings for Max FPS to 30/60/90
o Added toggles for Motion Blur, Chromatic Aberration, and Film Grain
o Added a “High” Texture Resolution value
o Added Texture Filtering option
o Added an Adaptive V-Sync option (NVIDIA only)
o Added VRAM Usage Meter
o Added Mouse Sensitivity Slider & Mouse Smoothing Option

• Fixed low resolution texture bugs
• Fixed hitches when running on mechanical hard drives (HDD)
http://steamcommunity.com/games/208...592751466193037
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這片果然不能用普通的HDD玩
還好我現在遊戲都放在SSD裡