Ideally you would use the manual cache to download the area you wanted to see in full detail. However the UI for it has been broken for quite some time with a weird parallax issue that makes it impossible to know what area you’ve got cached. I’ve also seen reports that it’s just not showing the cached data in game anyways.
So you are at the mercy of the servers which have often been struggling since SU5 was released. About half the time I play everything is either melted or I get constant pop ups telling me there isn’t enough bandwidth for photogramatry. I have 1gb fiber so in most cases I know it’s the servers having an issue not me.