Same here. CPU goes all the way up to almost 90% but it may also be 'cause I have a pretty dated PC (i7 920 here, 10 years old if not more) to which I added some things over time such a couple of SSD's, a new R9 270X graphics card and some more RAM (from 6 to 12 GB).High cpu in this demo...anyone else.
My pc spec is decent.