I have the same issue and I do launch RetroArch with full fam access using the above-mentioned method.
My setup is:
•Atmosphere 0.8.7
•7.0.1
•Most recent RetroArch nightly
•Holding R on NSP to accept hbmenu & full RAM
•RetroArch CPU overclocked with ‘high performance’ setting
Both Patapon 2...