I experimented a while back to see what it would take. I scheduled non-conference against only FB/P sims with Augustana and Fresno early in their own transitions to FB/P. I don't recall even seeing either at Very Good for the uptempo preference, but then again I usually forgot to check before conference season started, and I played in tough conferences. It's all based on possessions, I think, so if you're playing opponents who are slowing down, you aren't going to make it.
Those were some fun non-conference stretches, though my SOS was hanging out in the 200s, our margin of victory was typically in the 40 range, IIRC. But once I was trying to compete with those teams, that experiment went out the window. There aren't enough (any?) good players with that preference to make it worth anything more than a glance.