newbie from north tx

hey everyone just thought i would introduce myself. i upgraded to the tilt 2 from the htc fuze and it is much better than the fuze but not sure why this tilt 2 tends to lag so much and freeze up out of no where. i mainly use it for texting and surfing web but i figured i would sign up and see if i could get some tips or info on preventing constant lagging and freezing up issues.