Even though some of us don't really like the service - still to say he had under-performed his contract might not be accurate.
Early in the 2015 season, there was a strong narrative going around Miami that Ndamukong Suh was at the center of the Dolphins’ defensive struggles, and he was woefully underperforming in relation to his immense contract. In reality, Suh earned the highest grade of his career (91.2), topping 90.0 for the first time while posting the highest pass-rush and run-defense grades of his NFL tenure. He also recorded the second-highest percentage of pressures per pass-rushing snap he has managed in any single season.
https://www.profootballfocus.com/pro-50-pieces-of-pff-data-you-need-to-know-for-the-2016-season/
Early in the 2015 season, there was a strong narrative going around Miami that Ndamukong Suh was at the center of the Dolphins’ defensive struggles, and he was woefully underperforming in relation to his immense contract. In reality, Suh earned the highest grade of his career (91.2), topping 90.0 for the first time while posting the highest pass-rush and run-defense grades of his NFL tenure. He also recorded the second-highest percentage of pressures per pass-rushing snap he has managed in any single season.
https://www.profootballfocus.com/pro-50-pieces-of-pff-data-you-need-to-know-for-the-2016-season/