I'm glad I found this thread as it's precisely my current issue after spending the last several days perfecting my mod list! And I'm pleased to say I'm using the nearly the same computer and mod list lol; but alas have the same issue. I'm looking now and very curious about your findings. Although I'm not using the two mods you mentioned, I nonetheless have the same issue (so, for me--same issue--different mod, i.e .perhaps those two mod weren't the core issue?) I'll bookmark the page and return shortly if I can find a solution to this self-torch/lantern fps drop issue. I prefer the lantern lol, and dude the eating/drinking mod is amazing I'm eating everybody's food! UPDATE: Only appears to be happening in exterior spaces. Does not occur in caves/interiors. Can you confirm?