Pearl, when at full heat, should you wait between attacks to keep heat up?

I've been doing some maths with pearl, to see how much DPS she would get by waiting some intervals between attacks, and It surprised me that she actually looses DPS with that.

That happens because she still generates heat even while attacking.

So unless hear damage increase is exponencial, not arithmetic, waiting for heat is actually a bad ideia unless you really need to/ have time to.