Problem: Reduction of Mesh surface count

Hi everyone, 

I am new to Gh and Rhino and I need help to find a way to reduce mesh surface count so that computer won't freeze every time I run operations.

I've created a Mesh with Cocoon pluging. Object is pendant luminare. On next stage I am planning to apply CatmullClark tool to create interesting surface.

My goal is to create smooth mesh with much more equal  sub-surfaces.

I will appreciate any suggestions :)

I am also attaching files if you might need them.