Yea, but he needs to touch Yusuke in order to seal his demon energy. I'm arguing that Yusuke is in fact faster than Minato at base speeds.
Yusuke may be dumb outside of fighting, but he has shown the ability to come up with strategies on the fly in the midst of battles.
Even if he does happen to seal his demon energy up, Yusuke still is a very adequate fighter without it. Remember he switched quite frequently in the battle against Yomi to his spirit and demon energy, it just depended on what he needed to use.
Yusuke fought Yomi for 60 hours, he ran at top speed for 5 days straight, stamina goes to Yusuke by far.
Let's say Yusuke opens up with a straight charge, Minato seals his demon energy or his spirit energy, Yusuke may still do frontal charges but will switch it up, but that will just lead to a battle of stamina, and durability, not only does Minato probably not have a move that could kill Yusuke, I'm pretty sure he can tank his own blasts.