Mecanim or Jobs for "Update-transform-rotate" in hierachical GameObject(s) (trees) ?

Hi,

I've been using the Update method of a C# class script to animate twigs of trees which are children of twigs of the same tree as rotation around an axis.

Peformance gained from using Jobs is not noticeable in 2018.0.b13 due to the current children-hierachy-limitation of Jobs (perhaps 1 fps from 56 to 57 fps).

Would using Mecanim for animation improve performance? Which applications can I create suitable Animation Clips with? Or can I even "record" them inside Unity?