I had this in mind after seeing it the first time and paid attention to the dialogue the second time around. I think it can work. It means that Poe doesn’t actually have to stall him for very long, though.

But there’s two chunks of Hux’s dialogue that can be kept. First, he starts with a whole monologue about how the Republic is gone and they’ll soon crush the Resistance, then when he’s done is Poe’s first “comeback.” Hux falters for a moment, asks if Poe can hear him, then when it’s confirmed that he can, Poe goes back into another “The Resistance is at its end” bit, but is cut off by Poe.

My thought is to join the two iterations of his “destroying the Resistance” speech (they’re different enough that they could be made into one long speech without seeming repetitive), and when Poe cuts him off in the theatrical cut of the second one, have that be where the timer runs out and Poe launches at the Star Destroyer.

I don’t have the transcribed dialogue handy, so I might be wrong, but I think it can work.