Seems a lot of lines there to me.
Try un checking the radius comp and see how it looks.

Myself for a finish pass I'd drop Z to full depth a minimum of 0.6mm away from the surface.
Then lead-in for a pass from there.

In theory there should only be a few lines afaic.
The usual lead-in etc bits at program start - the starting cut position - the arc R and the next position at 90 degrees - the next arc R and the 180 degree position - lead out - program finish position - end.

That's what I get anyway. Looks like it's compensating at every move for some reason as was suggested by mecanix.

I don't do inches