For NVidia XZC mining use the latest CUDA9, x86 ccminer from tpruvot (currently 2.2.3) https://github.com/tpruvot/ccminer/releases
Don't forget to add parameter to BAT file. It will increase your hashrate at MPH a little bit too.

Don't use djm34 miner. It shows higher hashrate on miner, but actually performs worse in MPH.
It keep submitting previous job after block was mined. MPH actually rejects it but don't report it to the miner, just increases "invalid shares" counter.