Furthermore, full speed cores (dynarec-enabled ones) can be launched from the homebrew menu through ‘3dsx’ files negating the need to litter your 3DS Menu with cores installed from CIA files to get the best experience.
To make use of the improvements mentioned above and play many PS1 games on your New 2/3DS console, follow this link to grab the latest Nightly builds. The next official release of RetroArch will implement the aforementioned improvements.
http://wololo.net/2019/09/26/emulati...emulation-3ds/
For more information and downloads, click here!