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, restarting my computer, I even gave java SIX goddamn gigabytes of RAM to work with. Nothing helps.
Now, I did notice something rather odd. When I load up the world, it will be fine for maybe 1.5 seconds. As soon as it starts to render the chunks around me, it drops to 1fps.
I'm 100% out of ideas. Here's my specs. If anyone can help me out with this, It'd be greatly appreciated.
OS: Windows 7 64Bit SP1
CPU: AMD FX-4130 Quad-Core 3.80 GHz (44 *F)
RAM: 16GB Dual-Channel DDR3 665MHz
Motherboard: ASRock 970 Extreme4 (92 *F)
Graphics: 2048MB ATI ASUS HD7870 Series (81 *F)
1TB internal HDD, 119GB internal SSD