Like what you are trying to do, but 10 hours in and you have 33MH/s network hash rate, when a typical i5 will give about 100kH/s, so either there are about 300 individual PCs mining or you didn't account for botnets and farms.

Also, running my CPU at 80-90% utilization is not great.

Will come back if this becomes GPU mineable, until then, you're in the hands of the cpu farms my friend.