Comparing responsiveness between Rhino and Evolve is a bit like comparing apples to oranges. Rhino is simply a surface modeler without parametrics or full construction history. Evolve is a surface, solid, and polygonal modeler all with full construction history. If you find that construction history is not needed and slowing the modeling process, you always have the option to remove construction history, which will speed up calculation time. The geometry in Evolve is based on Parasolid, which is very robust and allows models to be passed to any CAD or CAM tool without geometry inherent with surface modelers. So in this context it is like complaining about your 200mph Ferrari not getting the same fuel economy as your Prius.
Evolve also runs natively on Mac and is EXACTLY the same as the Windows version. This is difficult from the development perspective, as can be seen in Rhino's efforts on Mac.
Having said all that, we are working on a completely new version of Evolve for 2018 that will be much easier to use and learn, and is being optimized to run as efficiently as possible. Stay tuned.