My procedure with RDiff is too slow, is there a work around?

I hope someone can help. I have made a procedure using Regional Difference, but this is too slow. It is taking 38 seconds.

This is my gh file: (108.1 KB)

I bet that it is a document tolerance issue. Look at the size of your brep, and how small the offset distance for its scale. In the Rh command line, type _DocumentProperties, go to units and set a bigger absolute tolerance (like 0.1 and recompute the definition), to me it goes faster. Also, you should set the plane to avoid extra calculations. And for this case, you don’t need the RDiff, since the Boundary Surface can do itself. (125.7 KB)

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