This game ran at 60fps on the Wii, and now it’s running at 30fps on Switch. What are we doing?

I played symphonia (gc) and abyss (3ds) long ago and enjoyed them both, but can’t really get interested in these 15-year-old remasters of old games. They look like the same game, same gameplay system as those, just with different characters. If something recent like Tales of Arise gets a port to Switch 2, though - then I’ll be interested.