OK, sorry, I missed that line. Should stop reading forums after bedtime.
the "G01 Z0.0000 F322.55 " is doing a rapid drop to the surface of the work- its still above the work, in the air, so I move rapid to save time.
Then the F 0.5 is issued because we are at the surface and starting to plunge into the work.
The next move is the plunge to the first cut so we must use the plunge rate.
The error in the code is that we should then issue a feedrate because we start to make X,Y moves. In fact because of the model nature of G01, all the following G01 moves will be to slow.
You want to edit the code to add an F322.5 to the line "X5.7321 Y2.7321 "
I thought this got fixed some time ago, but to be honest I have not made an update in some time. Are you running the latest version?