Looking at figures there is a fair difference between the finishing pass and the sharp corners -

Lets go for a 2.5mm DOC this time, just below the cutters limit and half the final depth...

Finishing the edge wants 23,000rpm and 670mm/min feed
Ploughing out the rads and creating the sharp corners - basically a slotting cut - wants 18,500rpm and 180mm/min feed

So quite a change, all other parameters being left fixed, sounds like a path rule in SheetCam might work there?

That would be a 25% speed reduction and setting feed to 28%.