Hello there, i don't rank myself as a fast player but if you have some time to put into your music you can get fast quick.

First Exercise
(please excuse the tab)
--------------------1234-
----------------1234-----
------------1234---------
--------1234-------------
----1234-----------------
1234---------------------

get a metronome and set the speed to about 80 or so, count in 16ths (1234,1234,1234,1234) for every four beats and play the above at that tempo, make sure to play clean and crisp notes without distortion. every week or so increase the tempo by about 10-15 bpm, so that you are allways pushing yourself. Hope this helps