It's in the title; I have the whole V collection and the Mellotron takes 30 seconds of beachball on the mac to just display the GUI (plugin is already loaded in a track). Experience this on an intel mac mini as well as M1 mac in rosetta. Other plugins have a small loading time but not as much. Also I have suspition that most arturia plugins GUI eats up a lot of RAM. When I open a live session with a lot of plugins I'm at 3GB for live; after having open every plugin windows it gets up to 5.