Of course, you may be asking yourself, well, how do other top-paid QBs fair against quality competition? How do Prescott's stats stack up against those in the pay range he's looking to break into? I'm happy you asked.
Against over-.500 teams both in the regular season and the playoffs (when applicable),
Aaron Rodgers had a 12/4 ratio and 5-3 record last year. Russell Wilson had an 11/4 ratio and a 4-4 record.
Kirk Cousins had a 15/6 ratio and a 3-5 record.
Jared Goff's ratio was 6/6 and his record was 2-4.
Tom Brady was 6/5 and 3-4.
Patrick Mahomes, Lamar Jackson, and Deshaun Watson, Prescott's QB contemporaries also up for new deals soon, had numbers of 20/4 and 5-2, 10/3 and 5-2 and 12/5 and 4-3, respectively.
While Prescott isn't alone in his struggles against better teams, all of those quarterbacks outside of Goff were better than Prescott against elite competition last year. For the quarterbacks around his same age and stature (yes, Mahomes and Jackson are MVPs, but you get it), Prescott isn't even in the same ballpark.
Against teams with a .500 record or below, Prescott shines. His TD/INT ratio is 64/9 and his record is 29-5. Those are elite stats for sure, but they come against below-average competition. Of course, that's what good quarterbacks do: beat up on bad competition. But putting Prescott in that elite category doesn't fit based on his career performances against better teams thus far.
https://www.thebiglead.com/posts/cowboys-dak-prescott-stats-good-teams-contract-01e8w476239v