As I stated before if you were mining Phi there were stratum server issues not adjusting the vardiff which had a big impact on speeds accepted by the pool.

zPoolMiner Update:
Bin update for 1.9.0.1 pushed for Nvidia fixing the x17 alexis miner. to update close the miner and delete your bin folder. when you relaunch the miner it will ask to fix the missing bins so let it and the update will be done.