To get this working properly in any mod is beyond my knowledge as for it to work properly, it must work in conjunction with the current speed, and it does not!
Abb, the smartzoom works uniquely with the distance to turn, and has nothing to do with the current speed. You have this feeling of speed when the map inclines faster when you run faster, but at the end, the distance plays the role, and NOT the speed.
Beside that, you can somehow set the distance (zoom-in and zoom-out limits, both distances and angles, or something) that you want the smartzoom to operate, so you have some degree of control over the speed of the zoom/incline, i.e. more distance to operate with less angle variation will smoother the map incline speed (Misterblue knows exactly what I am talking about).
So this should be much simpler now ... Misterblue has fine-tuned his mod and has improved the smartzoom from IDT, so I hope that this will get it simpler and that he can offer to help when requested.