xp the performence is not smooth.?

hello everyone
my new computer config is
1tb wd hdd
amd athlon x4 630
ddr 3 ram
mobo. biostar ta785g3HD

i have installed 2 os 1.xp (on c drive) and 2.win7 (on d drive).

my problem is that
while running xp the performence is not smooth. i.e. it hungs for few mins many times.but win 7 runs fine.

is this the problem of using 1tb hdd for xp?

i perfer xp more coz some of my device driver (eg. samsung p.c studio) doesnt work on win7

so kindly give me few advice wat to do.


question no2. how to edit the heading of my post?