Hmmm... I would say he's generally slow (meaning average for his age!) at the taking in. He needs time to digest things, to think them through.

Hovever, he both reads and writes at about the same speed, so I'm not sure I'm reflecting him accurately given your question... confused Writing is no problem for him. He likes to write, and often chooses to write books for fun.

He is a deliberate kid, on both ends of the process. He is not hasty in any way, and time worries him. He does not like to feel rushed. It is a major stressor for him.

Where I saw speed issues the most was in his (boring) homework sent home from school. He just isn't the sort of kid who is able to push through, get it done and get on with life. Nowadays, it's mostly problematic for timed math tests for math facts. But wait, that's production, isn't it?

See, I don't know! :p

Kriston