Name an LOS Superman speed feat that exceeds Goku's best ones, such as;flying from his space ship to the Ginyu force instantly, (It's been stated that Namek is much larger than Earth.)
passing a rock that he threw in a milli-second.
dodging Freeza's death beam.
Travelling to edge of galaxy from Earth to fight Controllers.
Confirmed to be faster than faster than light spaceship
X flew to the sun and back in moments.
Countless inter stellar trips.
It's been stated that Namek is much larger than Earth.
No it wasn't. Frieza just referred to how tough it was. According to Bulma its conditions were the same as Earths. You want to suggest Bulma is stronger than the Goku who fough Raditz?
Given that Vegeta is 10 times larger than Earth, which it is.
Vegeta is 10 times Earths Gravity. Nothing shows it was also 10 times as large. King kais plaent had 10 times earth gravity and was about 100ft across.
Besides thats not how spheres work. Lets use volume here rather than mass but still proves the point (for two spheres of equal density)
You think increasing a spheres mass by a factor of 10 everything on the surface must get 10 times bigger. Thats not how it works. An increase of radius of 10 times equals an increase in volume and thus mass of 1000 times.
V = 4/3*pi*R^3. The cube on the radius makes this effect happen.