Greedygreedyguzzler, he sounds EXACTLY like my 5 year old DS1 (who is in Reception). Exactly like him. He does everything you describe your son doing. My son is not into rough and tumble either (well, he is with his 2 year old brother, but is not "rough" with the other boys at school). He is lovely and sensitive, but sometimes to a worrying degree eg. he has been going to football coaching seeions for a few weeks and had been enjoying it up until thhe point they started doing some games where they had to lose lives or points or smoething each time they lost possession of the ball and then at the end they have to tell the group how many points they ended up with. Well, rather than treat it as a bit of fun, he has been so serious about this particular game and been actually crying about losing these damn points/lives and it's putting him off joining in ANY of the little games they do now. He just takes everything so seriously and literally sometimes, and is a worrier, even though he DOES have a great sense of humour. He is a deep thinker, and very quick at thought processes, great at reading and maths, it's just physically moving around and fine motor stuff that he's slow with.
He is slow at EVERYTHING. Getting dressed in the morning, eating his meals (god, so painfully slow at eating it winds me up, doesn't have time to finish his packed lunch at school), even getting in the car I am almost having to boot his arse in with my foot, as he climbs in in slow motion, looking at some bit of a twig on the ground or something or gazing into the distance at something.
His teacher has noticed he is slow at things too and mentioned it to us at parents evening last November. She said he was very quick to put his hand up to answer questions during group talk etc, but actual WORK - drawing a picture or whatever, he just gives too much time over to it when everyone has well finished and gone off to play. It's not like what he comes out with is a masterpiece either, it's just that he takes so long with it. I wonder whether he is just picky and pays too much attention to details or whether there's something more to it. I don't think there is, but it does hinder him a bit.
His teacher also noticed that he's not very physically well-coordinated. eg has trouble with balancing during PE etc. I'd already noticed he is all arms and legs when he runs, but had put that down to him being very tall and gangly (he is on the 99th centile for height).
I am waiting to see what his teacher says at his next parents evening in April.
Sorry, that was a bit waffly, but just thought I'd let you know that there are other boys out there like your son!
I personally think my son is just thorough, and very like I was at school. The attention to detail thing is a skill really if you think about it. I bet your son is just fine. They can't all have the same attributes, can they? Some will be faster than others but miss details, whereas some will be slow and methodical.