hello.
i have a question about cpu usage, i have core i7-3930k @3.2 with windows 8.1 and corona 1.7 hotfix 2.
for all of my scenes mycpu usage is 35 - 37 %. i tried different scenes with override or the other things. if you know how to fix this issue please help me.
thanks
kaveh
Is this also happening in a new, simple scene you create? Like one teapot, one texture, one light?
i did so much test, with override, with and without maps, different scenes.
Ok, but what’s the answer to my question? 
check core usage in corona pref, did you try to reset corona settings?