Here you go N19h7m4r3,
As requested and to the best of my ability.
To confirm, my system is in sig, cpu @4.6 and Fury X's at stock.
Tested the same locations and times, with the game maxed out @1440P with hairworks enabled, the only changes were "Hairworks presets" from High to low where mentioned.
There you go, as to the performance and average fps, with the game truly maxed out with Hairworks etc, fps is great, for the most part in the high 60s-70s, i've never seen it drop below 55fps.
With Hairworks on the low preset fps is pretty much the same, but on average i gain it seems around 5-10fps in certain areas, while others show no improvement at all.
With Hairworks off, my averages are around 85-100fps.
As to scaling, it seems fine, for the most part cards are pegged at 99%, with drops to around 77% for brief moments in towns.