DEFINITELY switch your priest to disc, even without smart heals disc priests are much stronger than holy right now. I'm not sure how much dps you are going to get out of a MW at low gear levels, probably not a lot. Unlike disc priests, fistweaving monks can do a lot more dps, but by doing a ton less healing. Wrath spam from resto druids does almost no healing (I have a friend who queued with me as a healer a couple of weeks ago but it being lfr wasn't much to heal so he "dps"ed).

The best way to get the dps of your team up is probably to get good trinkets on your actual damage dealers and focus on their gear, rather than hoping an extra 25k from a healer will make a big difference.