A few minutes into battle even Clarence began noticing his speed was increasing. Taking note of it to think about it later, he focused on the battle ahead.
His increased-and-still-increasing speed made it easy for him to support his teammates.
Everett and Bernard, who looked like they had a breakthrough not long ago, were benefiting from the battle as well. It was more of getting used to new power than increasing their skills for them.
He noticed Adelaide's damage was only high after a certain amount of time. For example if she landed a hit on Xing with that abnormally high damage of peak rank six, for the next few minutes her damage output lowered to that of a peak rank five.
That attack of hers was probably a technique of hers which required some charging or cooldown time. He couldn't determine that time with certainty yet as Adelaide obviously won't reveal all of her cards as soon as she had joined the team.