I ran my second session of Dungeon World today, which lasted just under three hours and at least an hour of this was made up with a single combat.
They were a party of four facing 12 small mechanical beetles (3 HP 2 armour), and I had a number of issues with how it ran.
Firstly, I had trouble with knowing when to narrate movement of the beetles that weren't directly involved in the moves the players were making, particularly when the players were being successful with their rolls. Is it OK to say something along the lines of 'in the time it takes you to move over and hack at those, the other beetles have moved....'? This seems a little unfair and disjointed for the players that have not had a chance to react yet.
I was also unsure of how to handle when one PC was in melee with three beetles. I reasoned that they could only attack one of them, and would have to roll Defy Danger to dodge the attacks from the two he was not engaged with, but this really slowed things down, because assuming he hit it meant he was making three rolls every time.
Lastly there seemed to be a lot of hitting and missing or not doing enough damage to take them out. In retrospect I suspect this was because I set the HP/armour too high for this number of critters and the party's current combat capabilities (they are currently still Level 1).
Am I running these aspects of combat correctly? If so, are my expectations of the speed of combat unrealistic given the system?