Mods and Performance

[Mordekhuul]

Here's a quote from a blizzard rep that may be related to what you are seeing Morde.

Quote from: Thundgot (Source)
We are aware that players on some realms may experience performance issues mainly in instances during peak playing times. This is largely due to the very high number of players in instances, and notably affects Naxxramas the most.

Please be assured that we are working on optimisations to address the issues, and will keep you updated on the progress.

Edit: I got this from mmo-champion

Thanks. I did see that, and things they do could help - I can dream.

However, I had frame rate issues towards the end of TBC in our 2 hour Hyjal blitzes, pretty much from the point they upgraded the servers to the Wrath code onwards. I can generally get by, even tanking, but I miss having the smooth frame rates that allow me to quickly spin my camera and click on a mob's nameplate as it runs past me into the raid for a taunt when AOE tanking multiple pulls in Naxx25 (yes, we often end up pulling two groups at a time - by accident at first, and now because its faster).