Hi there!
How to play fast with no hassle. I do not believe in a 3 hours warm-up to be able to play. Neither in a 10 hours daily practice. You have many things to do to enjoy your life, why staying in your bedroom practicing the guitar for hours and hours when, what you want, is to play music.
Technique is just a tool and here is another one to help you playing fast (do not listen the ones who tell “everybody has limits”.
We do not have any and the World is in a constant expansion.
Philippe Bertaud, the French Sensation