To give a little more context to the OP here: DC wrote lots of superspeed into their characters a very long time ago. DC versus Marvel (for example)...
Tough one to identify exactly where he slots in. Mark can't come close to the best of them, but there are a loooooooot of them. Someone other than me...
the only opponent goku and co. have faced that could be considered on that level was jiren and they fought him in a tournament setting. moro, granola...