I got a copy of project cars the other day and noticed I have to turn down the graphics settings to low to be able to play it with decent fps. I have an ati 5770 1gb graphics card, 4gb ram and intel core 2 duo 2.93ghz. If I upgrade to a 2gb card would I be able to turn up the settings with good fps or is it more a CPU issue and time to get a new PC?