Grasshopper Display Conduit, slow preview

Hi,

I think this question is for David Rutten,

when creating c# custom components that generate a high number of geometries, one can experience a general slowdown while previewing output in shaded mode, even on a fast computer.

I do not know how is internally implemented GH display conduit, but  multiple small-sized bounding boxes computing stage may be sometimes slow and could be pre-computed, see for instance :

http://wiki.mcneel.com/developer/rhinocommonsamples/displayconduit

This kind of slowdown kills interactivity but should be solved too by switching manually between "very low quality preview" (wireframed) to highest quality visualization.

How to do it directly inside the component script ? (overriding display conduit implementation)