I have a computer with a very good processor, 8GB of ram and good other things, except my graphics card. I have my graphics set to the lowest but in my Big Dig i have alot of lag. Because of the Tree Capitator mod, it takes about five seconds for the tree to be chopped down and traveling to other dimensions from either rift or mystcraft makes me have to restart my world. Whenever i make a NEW world it takes about 5 minutes to generate the world. I have permGen enabled and 7GB of ram allocated which is the most allowed. How can i make it run faster?