I've put it down to 0.8x and I'm hitting 60fps now pretty much everywhere.
Nvidia Sharpen is at 0.3x
It looks beautiful and plays smooth. I've also enabled mouth smoothening, adapative vsync on nvidia control panel.
I've also bought in a logitech G502 which is AMAZING for this game as it maps soooooo many actions to individual keys. Being able to spring/cover/stealth all from my 3 buttons on the side of the controller is amazing. dead eye, weapon, map and item are all attached to the scroll wheel and its 3 buttons and then my final 2 buttons on the primary click are for basic interaction. its made the game amazing. i now basically WASD+jump+r for reload + f for primary interaction.