Spatially smoothing Position Curves

I am more of a 3d guy using Cinema 4D, but I'm doing a project for what I thought would be easier in After Effects. So I animated a 3D layer in after effects with linear keyframes, the Animation being about 2 minutes long. Then I went back and did another pass to adjust the temporal keyframes to how I needed them to sit. Then I went back for a third pass, spatially interpreting the keyframes in order to get a nice smooth motion of the layer.

Now in C4D if I was to grab a spline and select all the points and smooth them I would get a super clean motion path, but in After Effects, selecting all the points and setting them to "continuous bezier" or "auto bezier" gives an ugly result. All the curves in the front and top view stretch so far beyond the next keyframe for keyframes that are close together. I need to do 5 more animations like this and I just don't have the time to adjust individually all the curves in 3D space. Is there an easier way, or perhaps a script I can implement?

Thanks,

Chris Arnold