@Rich-O-Brien yeah, in Sketchup is hard to imagine this kind of stuff working in realtime.
For simple objects sometime I do some basic retopology using Tools on Surface, or Artisan Knife or Intersecting geometry, then extract the edges, weld and run QFT "create quadfaces from wireframes".
Another workaround is to pre-triangurate (with qft diagonals) small patches and then use the "Drop To" plugin to trow/conform them over objects.
I usually do those tricks for smaller portions of models.
For massive retopology on heavy meshes like this (this model is 120k+ vertices) I usually run Topogun (whith QFT oj import/export) then import back the base topology to refine and detail it using VT, Artisan, Edge tools, Qft, fredo corner, JPP, Flowify and basically every plugin compatible with quads (and basically whatever tool and plugin as long as I use the pretriangulation trick).
I did a quick video to demonstrate this tecnique a few time ago..
https://www.youtube.com/watch?v=q582fh_r540