The question oof “where exactly is this supposed to be computed?” remains, however. Few MSFS users are going to have a second machine dedicated to weather simulation. This stuff requires some serious firepower, especially when you want to simulate down to a level of detail and resolution like single control surfaces on an aircraft.
Not to curb your enthusiasm, but just don’t go out there expecting too much. Your computer probably can’t handle what you want, unless you’re playing on a server rack filled to the brim with CPUs and RAM sticks.