On minergate I get 13- 16 Mh on ETC etheminer
And on nice hash
15-18 Mh on dagarhashimoto
256hash for equihash
Even you are using new cards if you didn't mod your bios and using the right driver version, you will get low hashrate, that's is basic rules on Polaris card for Daggerhashimoto/Ethash Algorithm. And one more important thing, don't use GUI miner (Nicehash/Minergate) to get higher hashrate, use a console based gateway, such as Claymore.