After booting the launcher I was using the no Lods, and compared to how I played the game (graphically) I had Effects Quality on High (normaly everything but Texture is on the lowest setting possible, w/ the exception of Texture) And I also had AA on 2x.
I pointed that it could be a DMG on the HardWare, because I was playing some games that were a little bit too much for my machine (-Cities Skyline and Rome 2 moded using unlimited Graphics Memory, and both were also stuttering, but because I was forcing my PC) Can this damage my computer?

My specs are:
GPU: AMD Raddeon 5570 (w/ 1mb of Graph Memory)
RAM: 4gb of RAM (dunno why I put 2)
Processor: phenom ii 945 x4 3.0ghz