I think 75% is a bit too high. We need to pick our spots wisely
IMO, you can still use the no huddle without speeding the game up. Just because you are in no huddle doesn't necessarily mean you have to snap the ball with 20 seconds still on the clock.
When you get a Defense in certain personnel groupings you want to exploit, then use it. Or when you want to get Cam into a rhythm, use it. Or maybe even when the Defense is looking tired, use it to wear them out even more.
The point being, you can speed the game up, or not, using the no huddle. And it can actually help your Offense out as well.