Even with low I get low fps where I bought this laptop he said it should be able to run high.
yeah, that's a salesman for you. Look, these guys get paid to make a sale. They will say anything to get the money in, and a percentage to their pocket.
You have a decent CPU, and the GPU isn't the worst. But new, modern games, are too demanding. There are some older games that I'm sure will run very well on your machine, and look amazing and with decent frames. Perhaps if you don't already, look at the Half Life 2 series, Bioshock 1,2 , Call of Duty series, should all run very well, and much better performance, but for games like Crysis 3, FC3 etc, your GPU wont be good enough for anything above low-med.