As a PLD who does like to speedrun and pull as much as possible I try not to get ahead of myself, I knew which cooldowns are up and I know how much healing our WHM/SCH can do.

Obviously I'll slow down if the healer has difficulties keeping up, sooo..OP probably just met a bunch of really bad Tanks.

I can't even remember when the last time was that I whiped on any dungeon roulette.