Baidevin

I am getting the same lag problems as you as far as i know as i can select more ram and have a 64 bit java and 64 processor and still get lag, but i think i know whats causing these spikes. When you spawn the chunks around you have to load causing the lag, since this modpack is pretty demanding as far as modpacks go this might cause lag. As for the constant lag issues depending on the size of your world and your exploration, these chunks need to load too, for me this lag lasts a little while but if i stay in roughly one place it goes away and eventually disappears until i explore or leave the boundaries of my establishment. As a test it would probably be best to stay in one place in the overworld and go afk for a bit and see if the lag stopped. Please reply if this worked.