Just a quick suggestion. You know how you are given the option to enable and disable diffrent mods in the MyM launcher, such as the maps. Add optifine to that list! Honestly i dont know why its not already there xD Sin
1. we would never get permission to add it 2. it destroys more than it helps in combination with mods 3. I don't get any better fps with optifine in bigger modpacks like tppi and monster
If you are getting lag, you could use FpsPlus but as Slind did say they don't really help mod packs but you can have a try and see what happens!