This is cool, but nothing practical.
I've observed that anytime an emulator is ported to a console via homebrew (we're not talking about emulation like the GODAWFUL emulator on the Sega Smash Pack on the DC and other efforts like it), it's usually at a point where said emulators/RetroArch cores are stable enough on PCs where a lot of the issues, be they graphics glitches, performance problems, sound bugs, or anything else are already ironed out to where solving performance issues is only going to apply to the system it's being ported to and won't require fixing however many other problems there are on top of trying to get the console port of said emulator to where
Now, how about the mindfuck of performance on the Flycast core on HorizonArch running DOA2 at pretty much full speed (with minor slowdown that doesn't affect the playability of the game other than maybe when you kick a character into the panels on the training stage) while MVC2 somehow is harder to run when my ODroid-XU4 running TheRA 3.0 has no problem running MVC2 outside of slowdown when doing multiple supers at once and where DOA2 isn't quite playable?
Is that core still getting updates to this day?