@Zing
I just hope that during the conversion from micro HDMI to regular HDMI, no image quality or performance is lost. I can't do anything about it, because it is not an adapter, but part of the case (which I would like to keep, because all in all, the Argon One case is great!).
I'll stick to CEA 4 HDMI, it's fine, and some N64 games lag already, so I think I'll just let it be.
The new micro SD card didn't do anything, by the way, it still needs like 20 seconds until the intro video comes up. Maybe that will change with a newer Recalbox version, too, it's okay.
(Small) Problems seem to keep coming up (sometimes the PS4 controller reacts veeery delayed which can only be countered by a reboot, after which everything is fine), but as I said, that's part of the fun for me