The person who controls the pace often controls more than the person making the noise.

Whoever sets the tempo determines what everyone else can do. Deadlines, when to answer, how quickly decisions get made, all of it shapes the options available to everyone in the situation, and it operates quietly while attention goes to whoever is talking most. Noise attracts notice. Pace determines outcomes.

Notice who is actually controlling the timing in your negotiations and your work. Then take back one piece of it, by not responding instantly, or by proposing the schedule first. Control over time is more useful than control over the conversation.