I have same problem, since I sign up with Hawkhost my CPU usage increase up to 100%. Althouhg my visitor on Hawkhost just under 200 per day.
I had at Hawkhost since Aug 17.
Try imagine if my visitor get normal, about 1000 - 3000 per day, maybe I will be suspened. Sure this is make me confiused, what wrong with this?