TekkitMan3000

Title: Random FPS Drops Version: 0.5.1 OS: Windows 7 Java Version: Java 7, 64 bit Description of Problem: I literally walk around, and my FPS drops to 1. Does this have to do with mystcraft? because it happens a lot more often in mystcraft worlds. And dont start saying my computer is bad, i have nothing but java, minecraft, and tekkit on this thing. Back to the point, how do i fix this? I have to close down tekkit and reopen it every time. Please help! Error Messages: No error messages... Error Log: