This. It's not the games fault, it's the systems fault. And also Nintendo's fault kinds for this being kind of an oversite. We FINALLY get to decorate outside of our houses, ofCOURSE we're gonna put alot of stuff out, but the system simply can not handle it. Which is really stupid. I don't think any updates to the game will cause the framerate to stop dropping, unfortunately. I'm not sure how likely Nintendo will release an update for the system itself that would fix not only NH framerate drops, but other game FR drops (Age of Calamity, BOTW in like literally 3 areas of the world, just to name examples). I'm not sure if such update can be released for a system problem like that. I know I've heard of system updates fixing system problems (for other consoles thou, not Switch) but not all problems can be fixed with an update, that's really more so for smaller issues.