Solidcam and 4th axis work

I am trying to use my 4th axis with limited success. When trying to cut a 4 axis pocket in something round, my post processor is generating the code and setting the F (feed) to 15 inches per minute (what I have set in my solidcam software).
This is fine for cuts that dont utilize the A -Axis (moving only in x and Y). Once the cut gets to a rotate command and the A Axis starts spinning, it feeds at what appears to be 15 deg/min (incredibly slow)
Curious as to how you guys are programming the 4th axis on your machine. Does your post processor/cam software is compensating for the size of the arc created and setting a new Feed on rotate?
Sorry if this is vague, or hard to understand still trying to wrap my head around 4th axis work myself.

Thanks
Here is just a little test part that I am trying to code
Solidcam starts the tool in the center of the pocket and more or less spirals out. I have a feeling the code would produce the correct part if I gave the machine a month to punch it out. 15 deg/ minute seams to creap along at a snails pace.

To give you an example of the code generated

G1 Y-0.547 Z0.053 F10.
G1 X5.249 F15.
G1 Y-0.549 Z0.028 A-87.073


The Tool Plunges into the material in line 1 at 10 ipm
The tool makes a small X movement at 15 IPM (from here on in the code feed is not changed)
The magic starts happening with the A Axis as the tool works out of the center of the pocket. but feed is still set at 15 (which is deg per min I beleive, not IPM)
http://i.imgur.com/mKf1X2h.png

this could be in the post processor definitly. I had a similar problem and a guy on here modified it to where it posted a feed after the A. Try this because the machine will only move as fast as the slowest axis which would be the A.

Code example:

N1238 X177.136 A-30.828
N1240 X177.1671 A-30.8
N1242 X177.1909 A-30.763
N1244 X177.2059 A-30.719
N1246 X177.211 A-30.673
N1248 A-27.637 F596.
N1250 X177.2119 A-27.567
N1252 X177.215 A-27.44
N1254 X177.2196 A-27.334
N1256 X177.2918 A-26.721 F591.
N1258 X177.4306 A-26.124 F575.
N1260 X177.6337 A-25.555 F549.
N1262 X177.8975 A-25.022 F513.
N1264 X178.2176 A-24.535 F469.
N1266 X178.5883 A-24.102 F417.
N1268 X179.0034 A-23.731 F357.
N1270 X179.4557 A-23.428 F292.
N1272 X179.9373 A-23.198 F221.
N1274 X180.4399 A-23.046 F146.

Yes thank you for the reply. I got it working now

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