What is the 'CG' line do in my g-code

[MS1559585670]

I am doing some pretty standard pocketing using RhinoCAM running on Rhinov8.
And my CNC is slowing way down in spots as it processes these 'CG' commands.

I am not sure what they are for and how to control the speed/feed of those lines. But my tool is rubbing/burning against the plywood as it slowly processed these commands. Is there a way to not have them in the code? Not even sure what they are doing.

Here is the top of my g-code up through the first of thousands of the 'CG' commands.

SA
'Setup 1
'Work Zero
'Hex Inset 1/2"B
&Tool = 3
C9
TR,6000
C6
PAUSE 2
JS,3.5,1.7
JZ,0.2500
J2,4.6082,4.9776
MS,1.,0.5
M3,4.6082,4.9776,-0.0812
M3,4.6082,4.9776,-0.1062
MS,0.9,0.4
M3,4.5680,5.0747,-0.1248
M3,4.5534,5.1856,-0.1445
M3,4.5534,5.1962,-0.1464
M3,4.5534,5.2067,-0.1482
M3,4.5593,5.2518,-0.1563
M3,4.9818,5.1962,-0.1563
MS,1.,0.5
CG,,4.9818,5.1856,0.0212,-0.0053,,
M3,4.9818,5.1962,-0.1563
M3,4.8568,5.1962,-0.1563
M3,4.8568,5.1134,-0.1563

[MS1559585670]

Just a quick follow-up - I now know that CG is a circle command. But what I do not understand is why my ShopBot Desktop is running them with such slow feed-rates. I specified 60 in/min for all speeds in the RhinoCAM Feeds and Speeds as just a test (Engage, Cut, etc). But still the CG commands go at about 1/4 the feed-rate. I see the MS command placed before the CG but not sure why RhinoCAM is specifying that - and where can I change that to not slow down so much in the RhinoCAM plugin.