My husband has this issue, and it affects everything.
Part is anxiety.
Part is his crummy small motor skills.
Part is perfectionism.
Part is not so terrific executive functioning skills.
We had to mail a package. Went to the post office. He had to fill out some forms, and the clerk actually said, "While we're still young, man, while we're stll young."
I don't think he took longer than anyone else, but he moves so slow, and is more precise with his actions. Luckily, Fior didn't notice the comment or he would have melted down.
You are not alone.