It’s likely the best there is for that spot. London has the densest, most detailed PG data in the game and still leaves much to be desired. It’s so dense, Asobo has adjusted the LOD for London, terrain detail 400 is the same as terrain detail 150 over NY. Hence you notice popping and morphing a lot more over London to keep bandwidth in line with lower density PG areas. (You would need over 300 mbps down to keep up otherwise)
Here is a collection of close ups of the best PG data can be
I’m measuring the total size of the PG area there, further down are up close shots of the best PG data has to offer.
Technology hasn’t caught up to expectations yet! The data is derived from planes flying over on parallel paths taking hi-res pictures. Maybe one day it can be combined with street view images to clean it up. The big problem is, all have to be taken roughly at the same time. Cities change all the time.