We are super excited to be rolling the game out and we are actively looking through the community feedback.
There have been reports of certain i5 CPUs having performance issues causing very low frame rates – We are still working on the final solution for this issue, but we have had reports that changing WorkerThreads = 4 to WorkerThreads = 2 in your config.ini file can help (In the game folder, commonly located here, C:\Program Files (x86)\Steam\steamapps\common\Call of Duty Black Ops III\players\config.ini).
We have also noticed that some systems may get better input response with FPS Cap set just below refresh rate. If you have a 60hz monitor, you can try enabling Vsync and setting your FPS Cap to 58.
意思是I5的CPU會使游戲出現低幀率，方法是在游戲目錄的players文件夾里找到config.ini這個文件，文本工具打開打開，找到WorkerThreads = 4 4改成2，保存