is there a language or region that is faster for speedrunning this game? since you have to watch through the text bubbles, what is the best language to speedrun this game on?

I'd assume french if playing the pal version, as it's faster in BOTW, so it might be faster here.

I think it's Japanese since that's it in Galaxy 1 but I'm not sure about 2

Vallu plays in English PAL so I don't think it makes that much diffrence especially if you're doing a 242 star speedrun

I know it saves 50 seconds in SMG1 in Any%. It doesn't really matter though once you go past Any%.