RVN mining issues

Trying to mine RVN but got some weird issues and question.

First of all, my hashrate of ccminer and ravencoinminer (based on ccminer) displays between 6500 - 7000 kH/s, in coinfoundry my stats only show 1.7MH/S which is far to low...

Also why aren't there any blocks found yet ?

Newbie to RVN, so i might get things srong...