I've just never used the animation part of Vue - animations can be cool, definitely, but just working with only one computer, the calculation of good looking anims is too time consuming for me ...

Anyway - looking at your animation, the rough part seems to be concentrated to that part in the anim, where the camera view is pointing totally at a lot of details covering the whole frame size and that in close distance.

Once the view moves into the sky area, and the objects are getting further away, meaning the details per pixel are far less to be calculated and the animations gets smoother.

Maybe you have to double or triple the frames to be calculated during this first period of camera movement and later you have to rework the movie in a good video processing program and recalculate the speed there - this way there would be enough frames for the processing program to drop every few frames and get to the right speed for that beginning part of the anim.

I know, this would be just a work-around, but i'm not even a beginner in Vue animation ... sorry.