Skyrim doesn't really handle higher a higher fps than 60 very well, plates and other items starts flying all over the place and stuff like that
I had to cap it at 60 because well, Skyrim's engine really sucks sometimes, it felt like the game was possesed or something when I hit around 90-100 fps haha.
Realvision seems to be one of few enb's that is up to date and it does look great, the best part of using enb is that you can download all kinds of parallax mods that makes textures look awesome, it really gives things like mountains and rocks a nice and more realistic looking depth.