So I am at the stage of having built a show in FS and EV. Unfortunately when I try and run it (even just locating the lights) on EV my PC slows to a snails pace

The question I have is can anyone advise me on the specs of the laptop I should be looking at to run both FS and EV efficiently. I dont want to spend hundreds on some top gaming machine but just get what I need to allow EV to work as it should. I am guessing it comes down to RAM and graphics....??
Any advice would be very welcome and thanks.