Recently I started using a different emulator for Spyro 1 120% called RetroArch, that is not on the list of allowed emulators. Although, this emulator is the same as ePSXe with an exception that you can change the emulator's disc speed from 2x to 14x, but it has less slowdowns and better performance overall (at least for me). So, I would like to ask if you could add that emulator to the list. As for the disc speed subject, I've timed it and 4x is the closest to console (the way I timed it was, I looked into an average console time from where you press "Start New Game" from the start menu until Spyro starts actually moving and i ended up using a -22.6 delay, while on RetroArch 4x we have a -22.9, resulting on being 0.3 seconds slower than console). By that I mean you could, perhaps, only allow it with 4x disc speed, and then you could check that by the amount of delay people use on their runs.

These are my current settings for Rayman Optimum: http://prntscr.com/holuei If you want lower settings than that, you can change the pixel shader to something without HQ, although, what I recommend is trying each of the pixel shaders and figure out which one has the best performance for you.