After Fridays patch the stuttering became unbearable. Before that I was playing happily, just avoiding built up areas. I have the three blue lines, but the wireframe / box I got rid of by setting AF to 8x. My CCC settings are default otherwise.
It doesn't seem to matter how low or high the in game settings are, FPS is good all round. I play at 1680 x 1050, everything on and high except buildings, buildings amount and forest on medium.
Luckily I had the original steam version in my recycle bin from moving the game folder to my SSD, so I'm playing the beta patch version now!
