When this was posted to HN, a lot of people could relate: https://sive.rs/slow

For me, I'm not sure if "slow" is the right word. I think "delayed" or "sporadic" is more accurate.

Thoughts for me are like when a word is on the tip of your tongue, but you can't think of it right away. Often you'll think of the word later: you weren't actively thinking about it, but the thought was simmering in your mind and just randomly pops up.