You're always going to get low FPS on a laptop unless you're buying an expensive ass gaming laptop
No. Depending on which game we're talking about, you can play on laptops...I play aapg on a 2011 Samsung rf511 laptop (it had a beefy CPU, but everything else is average to scrappy, including the screen which is sort of poor). The real issue on laptops as always is how heat is dissipated, and whether or not the psu will properly cope to the load.
There are also some 3rd party tools that disable part of the rendering "features"(I think some used them in the past to deal with the early netbooks lack of power), so to speak, such as lighting or textures, but aside of the game looking crappy, tools such as that won't be allowed by Punkbuster.
But actually, even my old Asus netbook I had several years ago was nearly able to run AA2 somehow, so I bet you guys must be running on truly ancient hardware or either have a lot of bloatware running in the background aswell...