08/28/2013 02:37 PMThe lag at the start / end of the fight (and throughout) really needs to be addressed. It seems to happen whenever a large wave of adds spawn or despawn.
Posted by Conjor
We believe this to be a PTR-only issue, where aspects of the fight cause the gear scaling aura to update multiple times and cause some major delays. That shouldn't happen on live realms, and we'll be improving the way we handle PTR item scaling in future PTR cycles to avoid this issue (and also allow things like hit/expertise to be preserved properly).