Just had a play with mine too on the SC Time test mode

I was averaging around 88 - 98.  From reading on RGP there does not seem to be a definitive answer, but most say anything around this is functioning correctly.

In relation to the divertor error, when I had the P-C ROM installed I was getting a divertor-lo error on startup every time.  There was nothing wrong with my divertor and upgrading the ROM resolved this issue completely.