im running on an AMD RADEON HD 7870, with a 8320 cpu. And whenever im on a minecraft server, im lagging pretty bad, i play single player, and its a bit better, running at around 100 FPS with a few lag spikes, but online is 50-60 FPS, then it will kinda freeze, and drop framerate, and its kind of annoying. I mean, this graphics card is pretty good, is there a solution to make minecraft (or other games) run faster. I got this computer yesturday, and the only game i've played was minecraft so far, so i haven't tested any other games. Do you think it could be because the computer is used??