Flash and Supes would be a nusance at best. There were Ginyu force members who were speedsters and that could slow people down/ stop them in their tracks but the still were defeated. Saiyans are just stronger and their rejuvenation abilities after near death experiences make them even more dangerous.
All of them were slower than speed of light, Guldo could only stop time when holding his breath, and got killed by a surprise.

Yall can keep trying to downplay and discredit the DBZ crew all you want but it won't change the fact that Goku is a stronger and better Charcater than Supes and the majority of the DC universe. Even the folks over at DC know this and that is why they are trying to make their universe more and more like DBZ as time goes on. Remember when they tried to give Supes his own Vegeta LMAO?!
The fukk? Goku in DBZ was based on Superman, you idiot.
Superman is an iconic character and the most recognizable superhero in the world. Nothing about the D.C. universe is more like DBZ.
Again, show me stated proof of Goku moving faster than light speed. Show me proof of Goku showing any physical feats matching holding a solar system destroying black hole in his hand.
I've shown numerous examples of them going much slower than light speed and stated numbers of Buu Saga Goku unable to lift 40 tons. I've shown examples of a character moving too fast for SSB Goku when he's time skipping in .5 seconds but you haven't disproved anything I've said.
Show me stated, concrete proof of Goku moving faster than light speed