I second this, imho. Not only is ePSXe quite inaccurate for a lot of games (often moreso than PCSX-R in my experience), but it's also windows-only and closed source (so none of the inaccuracies can easily be patched).

Mednafen is quite accurate and open source, I personally think it should be the preferred emulator if any ps1 emulator is allowed (most likely also including the BeetleHW port since it's the same emulator just ported to the libretro API, notably for retroarch)

Is there any specific reason why ePSXe is the only allowed emulator? Is there a process for evaluating other emulators? If so, can we help with that or is that entirely out of our control?