Got there in the end, it was my error for having the Feed per rev box checked in the tool program. I found the Fanuc in the list of PP and used that but kept getting F rates of Feed per rev, I was looking for mm/min feedrate which are totally higher numbers.
I have now learnt how to add a PP program to Fusion and loaded the Artsoft Mach 3 with which I am familiar, so now up and making swarf.