Well, I gave the game a chance, played it for a few hours but dont think its for me.
Managed to tweak the graphics a bit with a Sweetfx preset, desaturate the colours and increase the constrast mainly. I can max the game out on my rig at 1440 res on Win 8.1, it ran very smooth and no crashes but unfortunately I just couldnt get into it.
For me, the game is too vast, I know this is welcomed by a lot of gamers but I found fast travel made it too easy and running/riding a horse just got boring. I know its a completely different type of game but GTA V, travelling across the map you have hazards to avoid like other cars, buildings, people and the cops etc. In this you can just gallop in one direction and pretty much avoid anything and enemies you can avoid by just continuing to run.
I tried, but just dont have the patience or time to invest in it unfortunately.