Been playing around with the latest PS1 Emulation in Retroarch stable build 1.9.14 on a NEW 2DS XL with CFW and here are the results I have come across.
1. The core crashes when loading any ROM bug in latest stable 1.10.0/nightly builds has been fixed.
Latest working nightly build is from 23 January 2022.
2. Performance is great on most games with latest stable build. Constant and stable 50 or 60 FPS. Playing in CHD format.
3. Small number of games not working and crash retroarch on startup.
4. Retroarch sometimes still crashes but usually not when playing games. Ie exiting, closing or loading new content etc.
5. Contrast can be a bit dark on some games. EG Fox Hunt, Crash Bandicoot.
6. Audio can be a bit choppy on some games. EG Monkey Magic
7.Analog & Dualshock controller setting not work on alot of games. Ie Setting input > Controller Port 1 to Dual shock or Analog results in no controls working when running games. Changing back to standard control setting and controls work. This results in not being able to use thumbsticks to play game. Only d-pad ETC