Solar Envelope, with topo, took 1.1h for a box

Anyone knows why?

envelope.gh (61.1 KB)

Probably becouse you are asking for 8760 hours envelope?
Define a much shorter period, the more critical period (one day or a few hour of your critical day) and it will run fine, time wise.

@AbrahamYezioro
Here, the one with flat topo took only 1.1m, same 8760 period.