Portugal
well as i know reaper extremely well as well as ptw
(ive also mucked around with samp) i'm curious.
how are you measuring plug in cpu n memory useage in ptw ??
to do a proper analysis it might be a tad difficult.
cos differrent songs n plug in settings.
otoh if you are running the exact same set up in samp n reap with
exact same traks with exact same plug in settings your point has merit of course.
if your right, from a technical angle as far as i understand all most hosts do is instantiate
the plug in, thus i cant see why the host itself might be adding resource useage.
unless the host itself is adding some additional protection or other routines.
difficult to say.

retired puter engr....powertracks on amd......NICE !
"what is the black art of audio engineering ?"
my silly songs...motagator.com/bmanning
see my tips in the tips section.