Ive been playing little under 3 years and Im trying to learna Paul Gilbert lick of one off one of his DVD's

I've got the shape down but using a metronome i ave come from about 60 - 88 bpm and my little finger is bloody killing

Is this just because of the extra speed? Ive never "shredded" before 2bh either so i assume it is

The part of the lick it hurts on is:

e -8p5h7-8p7p5- repeated