I've mined Zcash on a VM with 4 cores and 8GB RAM available. CPU load of the host PC was about 30% (I believe, 1 core maxed out and a few % for the host OS), and about 1.8GB was actually used by VM of the 8GB RAM limit (I used dynamic). So, it wasn't maximum possible mining speed, right?
What are the options to control the mining process?
What are the defaults in current version?