I have to say this much, a computer does makes a difference. My old laptop that was a gaming laptop is dead. I got a new desktop recently and I can tell you alot of the problems I was having with my laptop, I am not having that problem with this computer. I am not seeing much lag.
Since I got the computer up and running, I have not seen myself get DCed until today which I think its because my internet was acting otherwise, it has been running smoothly. The graphics and everything have been running a whole lot better. If you get the right computer, the computer can run games without problems. Sometimes the problems you have with games can be on your side but there are times it can be on their side.