Looking at this site: https://www.nicehash.com/?p=calc
x11 (quark should run the same speed) -  will run at around 8mh/s.. currently (5:06am) network hashrate is at 399,816,925h/s.. so around 400 m/hs which means you'd probably get round 12.5 Met per round or around 30 sec.
The hashrate has been bouncing around a lot since the start.

The VM MAC im running now is fast but running into similar complications as well as compilations with the new win wallet- both being a very new core update to the source and wallet-qt.
Hopefully tomorrow ill figure this out tom as I am falling asleep at the moment  - i'll fill up some faucet mets now also