I am under the impression that something is broken in the generation and/or display of GH surfaces in Rhino.
For instance, I generate a few loft surfaces, and it will take almost a minute before the interface gets out of coma and actually displays them.
Strangely, the profiler doesn’t register this time and doesn’t even display any execution time.
Once the geometry is created, I can hide or preview the surfaces in a snap though.
Generation of Lofts takes forever.gh (29.2 KB)