@RustyMG Atari 5200 is already on Recalbox and I think one of the 8bit Atari computer is coming in 4.1 (not sure)
For the other systems, I simply didn't think of the ones you mentioned because I personally think they have no interest at all, beeing subpar compared to other computers with games widely availables on other platforms in better versions.
But you're right those ones are likely to work at full speed...