ctrpf plugins were indeed the problem. i had some installed from years back and moving them to another folder fixed it.
as for the low framerate home menu, it doesnt slow down what's on my system, its just the stream. moreover i see this same problem on kirby robobot, but only in some parts...
For some reason whenever I start a game with this cfw active i get a luma3ds Translation - Section exception. No matter what i do it always does it
Also the home screen streams at like 3 fps
edit: it would appear i was incorrect. it crashes on some games but some others work fine. so far ive...