I got around to patching this yesterday, all 29 gigs of it!
Had a bimble around the grand canyon then somewhere in England (don't actually know where i clicked, somewhere in the middleish!).
Turned everything up to Ultra for shits and giggles, and in 4K, my eight core overclocked to 5.0Ghz and Rtx 2080Ti with 11gig of memory and superfast fibre, can just about get mid 30's fps, lol.
But, but, those clouds are so bloody amazing!