Nah, she was already in the “Zero Suit” at the end of Super Metroid wearing tight fitting spandex in the end. They only made it into more of a “Blue body suit” in the GBA games.
6’3” is actually the shortest she is, because in some of the games, her suit ends up being even larger, like in Other M where it adds almost a food onto her height to the point where she towers over men.
But yeah, she’s also 200 lbs of muscle, so she’s built. This is official artwork.