Ah, I see you probably git cloned the wrong repo, there was still the original miner linked in the instructions for compiling, try to clone again from https://github.com/ocminer/zero-nheqminer instead of ../nicehash/nheqminer 
My cmdline is ./nheqminer_cpu_tromp -l zero.suprnova.cc:6568 -u ErikW79.2 -t 2 -e0 and I did compiled from this new repo. Only selected tromp folder for compilation. Could you post how to compile tromp? Maybe I made a mistake somewhere. It works for me like this:
- `git clone https://github.com/ocminer/zero-nheqminer.git`
- `cd zero-nheqminer`
- `cd Linux_cmake/nheqminer_cpu_tromp`
- `cmake .`
- `make -j $(nproc)`
Then simply:
./nheqminer -l zero.suprnova.cc:6568 -u suprnova.4 -t 2 -e 0
i get around 0,1 with 1 thread, the old standaloneminer looks better, or am i wrong?