I lied… It was 17! Here’s the quick patch I made.
Well considering the Pi is a £30 computer, I don’t think 15 is too bad.
You can’t expect to get the same performance as you can with a £700 PC with external audio card, <16GB of RAM etc.
I believe @BratAttack had an idea of putting a Pi and a 7inch display behind a Kosmo panel and using it to run one or two modules via VCV.