Hi, guys. Hope all is well and everyone is happy.

What are your thoughts and advises on how to build speed? I do know that keep practicing, let's say, scales on a low tempo alongside a metronome can help the muscle memory and with time I can do it with more speed. But do you have any other thoughts I could use?

Another example, the song Master of Puppets by Metallica, which I'm pretty sure most of you are aware of it, a song written on a 212 bpm, but obviously, I cannot play it this fast. I can play it just fine on lower tempos; what can I do to reach that level?

Thank you all for your time and advises.

Have a great day, everyone. :)