Must admit not a fan of low level speed running dungeons, unless all of the people there are lvl 50, if people are below, especially if I'm on healer I will flat out not progress to the next room unless it's cleared, unless of course the lower levels want to skip too.
Usually I will see who we got then just say in party "full clear for the xp" only once had a tank disagreeing, which promptly changed when they noticed the DPS and healer was waiting in previous room