The “Heavy FX” is “analog obsession Dynasaur”
Multitheading is not mentionned Here :
But monitoring cores use,and using only one instance of this VST,I can say it’s a multithreaded VST
From my point of view,“Internal routing process” doesn’t really impact performance
Realtime sample processing and VST(I)s have the biggest impact
Renoise “smartly” distibute threads.Routing has no impact on this distribution.