Thanks, my gtx 1070 around 25-26 MH.
i get with the free open soucre ccminer 2.2 skunk from tpruvot's 20-20,5 MH/s with 1070 - what are your OC settings?
last driver nvidia, win10 x64 10ddr3, ccminer-2.2-skunk and ccminer from post above, replace ccminer64 to ccminer.
ccminer -a skunk -o stratum+tcp://stratum.aikapool.com:7939 -u username -p x