Context: I’m trying to play Mario Tennis for N64, but it doesn’t run very well on Mupen64 Plus, so I’m trying to change the default emulator.

I’m currently using the aforementioned image on my Retropie, but when I boot up a game I don’t get the option to hit a button and go to the config menu to change the default emulator like in a clean Retropie build.

Is there’s a different button combination I have to use to bring that up, or can I change the default emulator while I’m in the in-game Retroarch menu?

Any help is greatly appreciated.