Really it is a shame, that there is no opensource miner for nvidia, only with devfee one, which makes 53-54 s/s on one 1070, and low cpu usage.
As far as I know there is no
NVIDIA closed-source miner with devfee that makes 53-54 S/s (hopefully you are not referring to this scam
https://github.com/zcminer-dev/zcminer).
So for now Tromp-based miners are the only one available for NVIDIA (for example,
https://github.com/nicehash/nheqminer).