Attached is a diagram to show what I would like to achieve when profiling parts. Many times 3 sides are straight and the 4th side is complex. I want to slow the bit down on the complex side and speed it up on the straight sides. How would you achieve this?

Basically I would like my machine to accelerate much like this video. Only not in 3D work, I would like it to use this type of cutting for profiling parts.

Just use a slower feedrate for the one side of the part?