Goku makes up his speed by teleporting alot using instant transmission as shown in BOG

Btw you still didn't answer which Goku we're taking about here

Actually metal has been stated that if he pushes himself to go into higher speeds, he could overheat himself or self destruct

The last time someone took Goku's abilities and genetics, they couldn't use it properly

And speaking of which, Goku could just defeat metal first before he can scan the biodata

What if I made it infernal again?

Lobotomy time!