I think there should be a room loading options that sets how many rooms are loaded at a time near you. This could be standard for use with camerafog or unlimited or a set number of rooms or just the rooms that you can see for no camerafog like the rooms used to be loading in the older versions. I know that the loading limitation increases performance but there should be an option to adjust it as well as the camerafog being set off completely so that the black camerafog rendering doesn't appear on things like cameras.