regarding controller, retroarch gives me this:
Go to es_systems.cfg in emulation station addon data folder and edit the extension line for each emulator and leave only the extension you have to run the game like.nes,.snes etc
sound crackiling go to retroarch.cfg and adjust line 2908 to something like 29.97
that count on screen you can disable it from retroarch settings
controller you have to bind from retroarch
es_systems.cfg is clear, but retroarch.cfg line 2908 is:
video_message_pos_y = "0.050000"
..there's probably an "audio*" line I need to edit, right?