We are good for Sword 2 already, as cpasjustes scummvm build plays that just fine.

(Even the slightly older ones without the orange screen of death issue (which might only be a 3.0.0 thing))
The Playstation versions for Sword 1 werent good ports (resolution, mousespeed, even more decreased resolution for the pal versions of the game (german voice track is better than the original for once..

) ...) as far as I remember, but I will check it out sometime - just for kinks I guess.
They also should be supported by Scummvm, btw.
Sword 1 is very playable in the retroarch scummvm Core - right now. The Sound stutters on transitions should be considered minor - its just that this game is "all atmosphere", so ... it detracts..
Crashes on the retroarch scummvm core also shouldnt be an issue - the only time I could make the game crash on that one - I tried really hard..

(trigger a BGM cue, quickly enter a scene load, quickly enter a map load, with subtitles enabled...

- There arent many instances in the game, where the game tries to access as many resources at once. The programmers made sure of that..

So my guess is, that on the retroarch scummvm core - most players wont experience any crashes playing through the game. And if there is one - well, get past the scene on pc, put a savegame back on the switch - problem solved..

)
I also could mention, that retroarchs color rendering of the game is "more wrong" (slight blue tint) than the one in cpasjustes port, but then, I dont know why - and thats nitpicking..

(But I've screenshots to prove it..

)