Ok so I have this really confusing problem with anything Minecraft(Minecraft Technic FTB Really anything). The problem is that I can play HD games with almost no lag(Anno 1404(Medium Setting), Far Cry 3(Low Settings), and Flight Simulator X(Medium to High Settings)), But my Minecraft lags so bad and I don't know why. I thought maybe its because I have so many downloaded Softwares so I deleted 40GB worth of games, movies, and stuff like that. Then I tried minecraft and Technic. Same results. I even put OptiFine and it still lags. And this is with 1.5.X and 1.6.X I haven't tried anything before that.
Thanks :/
Update Java, lower your settings, disable any background services that you are not using.
Ill try updating but I have everything closed and I put everything at the lowest setting but it will still lag. Thanks anyway :/