Very interesting, didn't even turn it off and everything works fine now.
I would say that multiple mods caused some thing to happen, later I've played few mods and after them your mod doesn't have performance issue
Well, no performance problem now
Though I have a crash, you will get a PM with debug log.
As soon as I enter Kurast Causeway, entrance on the right side crashes the game, entrance on the left work fine. Anyway, once you click before the game loads the entrance name game crashes...