So I'm playing a song at 200 bpm and it involves three beats to be 16th notes but I just cannot get myself to go that fast no matter how long i practice (I avoid over practicing so i don't get tendonitis) Here's a link of what I'm trying to play

Watch how fast his fingers fly! The fastest I can get is 180 bpm!
Anybody have advice or tips?
He's been playing this style for a damn living for decades. I think it'll be one of those things that just comes one day to you but damn that takes a loose wrist and fingers. Maybe watch the way he holds the neck, but in the end think of his hours recording and on the road. If you did get to 180 bpm tho I'd learn more songs at that speed and come back to it later.