questing is a painful for sure but so is boosting there is no easy way it would be nice if during the next Xpac they allowed you to start at 55 if you already had one.

With no easy or good solution for me I have decided to just pace the leveling of my alt teams. Run a few quest or a level a day all rested. Treating it almost as an after thought or something to do when I am bored with my mains.