laggy

When i play i runs and everything but it lags like crazys things take 5 seconds after i click on them to happen and it shows my everythiung like 3 seconds between things is there like a way to reduce this. And yes i have everything set to low and the frame is like 1000X600(70) or somthing like that, close to that but it there a sfae mode or somthingthat will make it run smothly?