Quote Originally Posted by Goji1639 View Post
Single pulling in a Trust, with everyone but me single target DPSing, dungeons take about 25 minutes. Someone single targeting in a dungeon isn't a big deal.
Ironically, all of my trust runs went faster when I go in as a healer instead of DPS. About 2m-4m in difference.

For a run to take 35m without players afk'ing or wipes, there has to be more problem going on than just 'one MCH barely AoEing.' It could be all member not keeping their GCD rolling. It could be one of them standing idly from time to time. It could be single pulling. It could be players messing up their rotation. It could be mixed of all mentioned case.
OP did not mention which lv80 dungeon. I'd guess it's Amaurot since that dungeon's design makes it last a little longer than the other 80s but even that won't take a goddamn'ed 35m.