I'm also a slow thinker and can relate with the author.

But something stands out to me here: The article doesn't mention making music, drawing or similar.

I started drawing a bit this year with a book that focuses on how it feels to draw and how to think about drawing and it has been quite fun and enlightening. It is hard to describe, because it's a unique experience.

The big lesson here for me is that you can switch thinking or rather brain state modes deliberately as long as you know how they feel. It's almost like switching on your intuition and stop getting bothered by your thoughts.

This intuitive mode is much quicker and more automatic. My theory is that slow thinkers have a harder time to get into that state or generally switching back and forth. That's fine in of itself, everyone has different strengths. But it's also not completely out of reach and it can be enriching to practice that way.