Youre not the only one mate! But then again I have one of the K enbs on quality present plus a crap ton of mods. Get about 40-45 in whiterun and about the same in riverwood, 65-85 open world depends on the action, 95-110 indoors, maxed out at 1440p. When on 3d vision shit hits the fan at 30 fps open world. 55-65 indoors.
Skyrim is a cpu intensive game. I think gpu as well? When i OCed my 4820k i had more or less 9 fps boost I think it helps the gpu a bit better.