isoluta

So I intalled tekkit on my dedicated yesterday, everything worked good and we had a good time, but when I woke up this morning..... At my house all the machines and the quarry works at 10% speed and everything generally is very slow and when I tried walking over to my friends house my fps started dropping down to about 0.5 fps and got crazy amounts of lag. Any suggestions to what could be the cause, or any fixes for it?