>>584085991) View Frustrum Culling.
Just because all of that model data is in memory doesn't mean that it's all being rendered at the same time. The entire map isn't loaded the entire time.
2) Switch needs to optimise for the shittiest storage format available for the console (slow speed Micro SD), If they broke it up into chunks it would need either the implementation of loading screens for running around the map, or loading pauses.
3) The system memory is in textures, those are loaded in on the fly.
4) Game runs fucking fine 720/900p on Switch 1 at a locked 30 FPS is the same performance target as the Zelda games and it matches it.
This shit pisses me off to no end. "wah wah wah optimise it like this". It is running as best as it can on the Switch 1 shut the fuck up.
I fucking hate Game Freak, but you have to be brain damaged to not notice that this is the best performing game they have released on the Switch.