The system has X cores, but Corona is configured to use only Y - rendering will not run at optimal speed.

This message will occur whenever you removed more than on rendering thread from rendering using # of threads option. It serves as a warning in case setting was accidentally set to wrong value.


Solutions:

  • Make sure you do not remove more threads from rendering than you really need to.
  • In case you desire to keep your setting, you can dismiss this error by clicking "Ignore similar messages” button in Error Messages window.