Play something like this. Post it here and tell us how much time you had to 'think theoretically' about your next note.
Music lesson time! So there are 4 aspects to playing music well. People make the analogy of there being 4 legs to a chair. There's:
1. Your musical imagination and creativity.
2. Your ear, how well you can understand music from purely the sound of it and relate that to your instrument.
3. Theory, your descriptive, structural understanding of music.
4. Technical skills, working material into your muscle memory so you can recall it and play it instinctually without having to overly process in the moment.
So one of the aspects of music making that all the greats have worked up are technical skills. This is where they'll work out ideas and practice them until their hands can execute them in time. This is what shredders do. Without this it would be impossible to do what they do. Often they will work out theoretical ideas, or ideas they just come up with with their ear, or a combination. Not having time to think up theory in the moment doesn't mean the greats don't use theory, it means they've spent time practicing the theory until it is instinctual.
I can work up a clip of me shredding, but not tonight.
Yeah, can't hear those devices sorry.
It's obvious from your playing that you can't hear.
I like the pretty thumbnails.
I like them too.