Oh wow, thanks for posting thisr! I wasn’t using the 64-bit client.
For others: In the Launcher, click the small down arrow (in the top right corner) and “Options” then “Game Client”. In game you need to re-set a few graphics options like v-sync.
It looks a lot cleaner, the draw distance is amazing (you can see more distant details like ruined towers on far off hills) and I almost get 60 FPS in Bree on a 1080. :-)
I have been back in for almost 20 hours, its a great game.