My computer is very simple, so I don't have bluetooth. It is also disabled in startup.
I do have 8GB RAM and 1TB harddisk (more than half un-used).
I added changed the /etc/fstab as you suggested.
My recording is also very simple, it is just one track after another, so I do not have to listen to one while recording another
While recording I usually only have Chromium and perhaps nemo and gedit open.
I will test this afternoon