You're probably going to have a hard time finding anything other then a 5200 drive on a laptop if it isn't a SSD drive.
While we're on computer specks...
i7 3930k, 16 gigs or ram, GTX 670 on WD Blacks and the loading time is pretty slow. Slow enough that I don't like mapping if I can help it. I haven't timed it but, going to somewhere like LA is well over 30 seconds.