Hoping this will help some of you scratching your head over why your hardware cant handle ENBs or even just poor performance in Skyrim altogether. My System is i7 4790k + GTX 970 and i was getting 25-40 FPS outdoors while running Tetrachromatic ENB with some high res texture packs and Vivid Weathers with a few other mods. I simply rebooted my PC, Disabled Hyperthreading in the BIOS, and hit Save and Exit. Now i get 55-60 FPS running my mod setup with V-Sync capping me so things dont get crazy. Hope it helped someone