Gonzalitro no , to configure video resolution , just over menu like adenis mentioned before.
on F1 you can go to aplications and configure there the ps2 and gamecube emu . and i think itsa posible to configure video of those emulator over F1 . but if you run the recalbox.script maibe you are able to load cores over recalbox and configure it, but for that just press hotkey+b or x on launching a game and you are able to enter on retroarch config for every emulators .