Cutscenes now run at 20~ fps and i got 6 fps in bathroom area, the black screen was just low fps and low patience for my part haha, now i got outside! still unplayable but very cool nonetheless; the cutscene improvement was huge too.
New version has been released https://github.com/PalindromicBreadLoaf/ARMSX2-NX/releases/tag/v1.2.0
This should help with anything GPU bound. Also be sure to set blending accuracy to minimum for free performance unless it breaks the game.
I'll...
4 fps max. in the bathroom (handheld, with my oc settings at max) and black screen upon trying to exit. Good news is that there's no fog problems... since i can´t go outside :D.
It's very interesting seeing the emu running on switch and play with...
Fog is a known good way to just destroy GPU performance (see Persona 4), but best of luck. There will be a new release somewhat soon that has a bunch of GPU optimisations, so that may help some if performance is abysmal.