Fast lvl

Im wondering how i can lvl fast and i have question.
there is bot wich add you ug speed hack auto pick and ,,fast atack"
Beacuse i've seen few times ppl who kill mob in 1 s with ,,fast atack" or can i make my self on Uce ,,fast atack" ?

cd-hack ?!
but then u have less dmg with normal hits --> u need for example mage and cast all 3 attacks at 1 time.

Only way to lvl fast at int is LA Botting. Or F10.