My computer is less than a year old. I have 700 gb of free space on my HD, 6 gb of ram 1.50 is dedicated to the FTB pack. I have a dual core i7 Pentium. I have changed the priority level for java to High in my task manager, I added optifine to the jar folder and set render distance to tiny, max fps, and everything as fast as I could. The FPS is very choppy it dives to 8 and 10 then back to 20 and sometimes 35 or 40. I am not using a texture pack. I can not stand Tekkit but my FPS was never that low and defiantly not jumping up and down so drastically. I used to use a 64bit sphax texture pack I built from the forums. I understand that this is beta and I am open to suggestions on how to make Minecraft run faster. I'm not yelling or angry just confused as to how everything is running so slowly.