Ok I am having trouble playing this game without lag its not the internet i just need to know how to put the graphics on low I have a big enough processor.
Your CPU may be strong, but without a decent graphics card, games will not run well. Odds are you're using an integrated GPU, which is very weak. Today's integrated GPUs feature roughly the same performance as a 5 year old bargain basement dedicated GPU with a hairball shoved in the fan. If you're not on a laptop, I suggest going to get a new graphics card. Entry level cards will work fine for this game provided your other specs are fairly modern.
it's in the graphics (or video or display, sth along the lines) tab in the options menu under the "Help & Options" menu.