Stuttering when in group

[Eeshen]

Not sure if this a DarqUI issue, but you are so knowledgeable, I thought I would ask here.

Whenever, I join a group, no matter if the group members are with me in the same zone or not, my game starts majoring stuttering when I move.

When I mentor anyone it gets extremely bad, almost to the point of being unplayable.

Otherwise, the game runs pretty smooth. Any thoughts?