Is this a router? plasma? laser?
Dont always go with what you see in the toolpath window it may not be true to what it will actually cut, Specially if you are simulating the toolpath, instead of a cylce start.
another thing. the setting you are using on CV stop angle wont do anything to 90º corners, if you want it to stop on 90º corners the setting would have to be 89.
My suggestion.
1. Leave settings as they were (CV on, CV dist and angle turned off) and cut a part.
2 Put a G61 in the begining of yout g-code and cut a part.
3. Put a G64 in the gcode, and turn on the CV dist and angle, put something like 89 in the angle, and 0.5 in the distance, and cut a part.
Compare the 3 and see which one is better.
My guess is that the part in suggestion 1 will have the most roundness but will cut faster, and with less shaking of your machine. Part 2 should cut without rounding but slower and with more machine shaking. Part 3 should be the lesser of two evils.
Regards
Fernando