Make animation of object collisions for paid

Hello! I need a help in developing the animation of collision objects from each other.
An example http://www.geofx.com/graphics/nehe-three-js/lessons25-32/lesson30/lesson30webgl.html
But I have about 20 3D objects (not mesh) and some other
behavior and moving objects( for example, https://threejs.org/examples/#canvas_interactive_cubes_tween).
That is why I need max optimization and loading

I tell about detail after your response

Surprise me with the price )