Perkus Maximus is not to be used on existing characters. It (as well as this entire guide) is designed to be used with an entirely new character.
With iNeed, you can go into the MCM settings, and set up eating so it's automated. That way, all you have to do is make sure you have enough food and water.
With the FPS, you can turn on the Steam FPS counter. That works just fine.
Seasons of Skyrim is not mentioned, yet, because it will be entirely optional. That is because it is a fairly heavy ENB preset, that is more taxing on systems than some other popular presets.
As far as your stuttering:
1) I need to see your load order (put it in a spoiler, please)
2) I need to see your skyrim.ini and skyrimprefs.ini settings
3) I need to see enblocal.ini
4) What Operating System are you running? (Yes this can affect performance)
5) Anything else running in the background? Did you run SmartClose before attempting to run the game?