BIZhawk and ePSXe are listed as the approved emulators but I'm wondering if there is any sort of information as to how different settings compare to real hardware (primarily fast disc/region variants) and what may be considered unfair or illegitimate.

I used ePSXe with the default recommended settings for my run because it seemed to perform better on my machine than BIZhawk (both of which performed better than my disc on PS1 but not my PS2 with fast disc speeds) but still if there's any information or resources I'd appreciate it!

P.S. Overclocking on ePSXe seems to mimic fast disc speeds up to the audio glitches but again I'm unsure as to the validity of a run that would implement those settings.

Thank you.