@@TheMBmulti oh yeah, i remember that :(, i have an idea, create backup of the world, than start removing mods from mod folder one by one, when you remove one mod, go in to the world and see if lag is fixed, if its because of the mod, later you just load your backup and remove that one mod, i believe you already tried this but i dont have any more idea, i miss constructing series so much :(
Honestly im pissed off because i am trying to build rome in minecraft survival, and u jut mad be realize how long it'll take. BUT im also sad that u only fot 65 likes on that so i added one more for you, and lastly how long did that take and was it worth it?