In terms of physical strength and speed, saiyans aren’t really that impressive. Just look at any fight in the dragon ball series compared to what you’d get out of any other shonen or even superhero series. Saiyans need to hit each other or anything else a comically high number of times before any meaningful damage becomes visible. Their speed also caps out near or at light speed among the strongest saiyans too.
Kid goku failed to manage to do so little as scratch Yamaha each blow during their first fight. Freiza was straight up one shotting some of goku’s friends and the saiyan race pretty openly. You don’t see saiyans like vegeta or gohan performing feats like destroying entire mountains or planets as often as the viltrumites or kryptonians do in their universes. Finally, it’s known that most of the power the saiyans have don’t even come off their raw strength and speed anyways. They get their power from Ki and wishes while every other alien trains their fundamentals like crazy. The saiyans are anime’s biggest frauds to me. All that talk about power and I rarely see them use any of it.