Hello, everyone. I was hoping to hear some tips and ideas to fix my problem. When I test my mods in a Superflat world, they all work perfectly. The mobs spawn, the items work. The textures are no problem. The world even loads pretty quickly. However, in Default World Type, it takes a very long time just to load the world, then when it does, the mobs are frozen, blocks don't break correctly. I can walk around, place blocks, use my inventory and open doors, but everything else is lagging so much that the world is essentually unplayable.
My mod-pack is pretty large for being my first mod, with nearly 60 mods ranging from new ores, to tools and mobs. Once again, everything works in superflat, only in Default type do I experience this problem.