Plus, vegeta got COOKED by frizea when he first came to the planet. and ssj goku destroyed frizea. thinking that vegeta is stronger than goku even though GOKU mastered ssj before vegeta? and goku never goes all out against his opponents, the only reason why he got destroyed by beerus in super is because he got caught off guard. the only thing vegeta was doing in ssj was spamming transmission flash. I think that’s the only thing he was doing against cell in cell saga, so yeah. he was only depending on speed, not strength.