CPU usage is low during rendering


This is a 3ds Max issue which sometimes happens when there is a native 3ds Max photometric light present in the scene. The solution is to remove all 3ds Max photometric lights, or replace them with Corona lights. If you are experiencing this problem, please contact us using the following form as it will help us find the cause of it and solve it:

https://coronarenderer.freshdesk.com/support/tickets/new