The game runs at full speed, but weird fog makes the game unplayable. In the underground however the game looks just dandy.

https://rpcs3.net

System:
Intel i7-7700K @ 4.5 GHz
NVidia GTX 970 4GB DDR3
16GB DDR4 Corsair Vengeance (3000 MHz, 2 x 8GB)
Windows 10 Pro x64