My laptop is a stronger i5 but only built in graphics and I can get 30-45 framerate with no major fps drops, so yours should reach 60 with the graphics card. Another thing to check is if you can dedicate extra memory specifically to the card, some motherboards allow you to give an extra couple of gb to it.
Yeah he really isn't that hard to take down as long as you don't get a top tier player. If they are shooting lasers mostly, then just spam build and you know it's a newb there for the taking. He's great to play as though, although it's a cheat that the wins and stats count, they really shouldn't in any of the ltm modes.