Lag in Tower of Frozen Shadow

[Nefarum]

I don't see a "general bugs" section, so I'll just post this here.

On multiple occasions today when running around the first level of Tower of Frozen Shadow I've encountered pretty bad lag. When I run through a hallway, or into a new room, etc. I'll get a couple seconds of stuttering/lag. A friend of mine was also encountering the same issue on the first floor as well, but not upper floors. I don't have the problem in other zones or areas.