I tried one ENB preset that I always wanted to try out but sadly it decreased my performance to a rate of 35 to 45 fps even with trying out all the graphic settings from ultra to low.
I downloaded most of the mods that I used in oldrim that are also available as a SE version and I wanted to give ENBs a try as well since SE seems to be more stable overall. After having thousands of hours in oldrim already I finally decided to buy se as well.