What is a sweep picking? Sweep picking is like you play two or more notes like a chord but it sounds only one each time. Some examples start with up picking instead for down, be careful.
Always think sweep sounds and fell better than alternative pickings.
Here some nice Licks, if you do these exercises day by day you will impress how fast your style will change.
metronome from 80 to 140 ( 180 for more extreme)
This one is three notes by beats
In these exercises, may you need to move and your hand with the wrist. Do small movement.
Here is a classic exercise, in time i will plus some more like this
