Monk AOE rotation help.

[Snugglebutt]

I would guess the problem is not specifically one of your making if taking too long. MNK is just 'okay' for multi-target fighting in my opinion but that is not where it excels as a class in general, it sounds more like a party wide issue and not specifically as issue with you if adds not going down fast enough. You said the SMN and WHM did zero DPS, SMN and WHM can throw out some DPS too for example instead of just standing around waiting for you to kill them all.