Hello! I have not done this yet but it looks interesting. I'll get to it soon and see how it goes!
Viewing post in Ritter Ultimate Event Spawner (RPG Maker MV) comments
Hello again, sorry i've been a bit busy lately and haven't gotten around to testing the benchmark with this spawner. I'd assume it would be very similar in performance to other spawners as it seems the benchmark just spawn in events as it needs them. Unless there's a benchmark test which spawns & unspawns events constantly to see how many spawns & unspawns you can do before framerate goes down. That kind of benchmark is where you'd see the biggest difference between this spawner and others.
To address your other concern, my spawner does indeed copy the notetag from the template event when an event is transformed. All data on the template event should be copied over when you transform an event.
Thank you for taking interest in this plugin!