The mechanics of his mass/strength in changing sizes doesnt add up.
He keeps his strength but losses mass when small but then when hes big does he gain mass or strength?
I know in Civil War at least, when he got big, he was moving really slow but was still able to pick up literal trucks and shit to throw. I don't know if the "slowness" was just for visual effect, or if it was a result of him being larger, but it would make sense if the bigness was the cause of his slowness. ---