Retribution story quest massive lag bug
Might as well necro this one.
I’ve been having similar issues with story quest instances (Maeva’s Golems, Claw Island, and whatever the quest after that was). The game would just hang for a few seconds, and then “rubberband” forward. Together with the hordes of NPC enemies around, that killed me more than once.
Server was Elona’s Reach (EU)