lag/spikes at some place/cell

Tested using OpenMW 0.39.0 and Morrowind with no mods except tribunal and bloodmoon.

Encountered occasional massive lag/spikes/framerate drop on certain places/cell.

If anyone care to test this just to make sure, try going to the front door of Arano Ancestral Tomb and loiter around for few seconds, you will get some framerate drop or just stuttering. Sometimes in my case it can go down to 10< fps. It get even worse with more mods loaded. Sometimes just stays at less than 5 fps.

I am using some custom textures and meshes, but I dont really think thats a problem since other places, particularly the populated ones are just fine.

Another place that may have the same problem is inside Ashirbadon.

Hopefully someone will test this out and share the results. It might just be my computer.

(RM-3410 from redmine: created on 2016-05-29 by Randy Davin, , closed on 2017-01-03 by nobody, duplicates #3355 (closed))