Easily, his base form might get overwhelm a bit, but Sento can swap easily.
The AP advantage already come in pre-prep just in base form. And each subsequent form is stronger than the last. Even if he move fast he cant put him down.
Trial < Best Match < Sparkling < Hazard Trial < Hazard Best Match < RR&BB
And it is good to blitz but Tanjirou cant put Sento down in time. He have tank much better than him.
Sento is way more durable than him anyway. That still leave Sento with much more time to react. If he use sword then he just use the Magnet half body and yank his sword out of his hand.
And again, Sento have already deal with that before. Tanjirou amp is nothing new to him, Evolt use it. And the man get absolutely trounced in higher Hazard Level without resorting to thing like EvolDragon. And even that he have to use trick in order to lure Sento and put his guard down. And it's not like Sento doesnt have a way to track Tanjirou down. He have enhanced senses out the ass even in human form. His tech only enhance that furthur.
Now, tell me. What is his answer to being shrunk, have his sword yank out of his hand, getting deconstruct with every hit, having thousand of pelting bullets that is much stronger than any of his attack that homing into him, transmute into diamond, get sticky with honey, powerful with phoenix, getting pass through Hanezumi almost instant spike defense, getting attack by multiple duplication that have stat wayyy higher than him even with amp, freezing, blinded by light, roasted by light, blinded by ink, have water suddenly spawn under his feets.
Seriously his stat amp ain't nothing. If he needed that stat amp to fight Muzan then he ain't doing anything to Sento.