Okay, So.. Technic is having some form of seizure for me.
I'm playing hack slash mine, and it works A-okay for the better part of two hours, running at a buttery 60fps. Then, I'm exploring a cave, and BAM. 2-1 fps. I was so confused. So I tried restarting the launcher. No dice. Still 1fps. Here's the kicker. I quit the game, and without even restarting the launcher, made a new world. 60fps. What the actual fuck? Tried going back to my old world. 1fps.
I've tried almost everything. I've tried switching java to high-priority, I've tried lowering all of my settings, re