Well it's not ever going to be actual 2G. It's a throttle. I'm not sure how much worse it could get when you have a reasonably solid signal, but I guess nothing stops network engineers from doing something awful.

> Because it is slow to render people start trying to swipe around the map to make it do something

At a certain point it's the user's fault. And once it gets to the point where you can swipe around, the tile loading should be pretty visible.

And to add more emphasis to the app being usable, I can get driving directions fully offline, then click bus and now it needs one tiny server request to tell me.