Would Deontay really be "slow" at a heavier weight?

Deontay around 225lbs is about right. He's extremely fast for a man his size, and that's where a lot of the power comes from. I think that's why beats Joshua rather easily. While Joshua is very powerful himself, he's not nearly as fast, or eager to engage. If he were to wait on Wilder, he'd get his ass handed to him. He's a skilled boxer, but I don't see him doing what Fury did to Wilder. And even Fury was 1 second away from getting ko'd. Joshua has no chance, and his team knows it as well. Which is why they're jamming up negotiations. They gotta make sure they get past Andy Ruiz. LOL.

Wilder was sick and injured several times in the last year. He couldn't train consistently and his body was underweight and weak. Now he's healthy and regaining muscle, we can expect a lot of early knockouts.

Wilder should be no more then 225-230 imo

Why would he need to gain weight? Is he planning on wrestling in future? More mass equals more force generated. It's the reason a 200+ lbs boxer can generate more force in his punch than a 160 lbs guy. Why should Deontay keep giving up 30+ lbs in fights for the perceived fear of him being "too slow"?