Not sure if this has been posted in this thread, but here is the article by Tim Dix (rough name to grow up with) who put out the data being talked about.
Dix says "Trigger Time" is the most important metric covered...
Trigger Time
Now, I only just started looking at the idea of “trigger time” last year, but I think it might be the most important of the three metrics covered in this analysis. Again, this is measuring the amount of time it takes a QB to start their throwing motion after they’ve locked on a target. This provides insight into how a quarterback sees the field and how quickly they process information. Additionally, the less time a QB stares down their target before a throw, the less time a DB has to react to the pass.
That reminded me of something Coach Shula said back in the day when he was asked about Marino's best asset and he responded, "It doesn't take long for the thought to go from Dan's mind to his arm and to his feet." I have referred to that as CPU Speed in the past. I also thought that is what made Marino so special. Once he made his decision to throw his CPU speed and quick release allowed the ball to be gone in a split second and his ability to react at the last moment by taking a step in the pocket resulting in being the least sacked QB despite not being the fastest athlete at the position.
I like Tua, but if Tua doesn't have CPU speed, a quick release alone is not going to enable him to become an elite QB as he will have a slow trigger time.