Well from the coach himself.
Conor came out good the first round, until he got taken down and put into the clinch situation. At that point fatigue was kicking into both fighters. Thing is, Dustin has better cardio/recovery. Dustin also chopped him down with leg kicks.
Conor won the first round, but he is primarily a 1-2 round fighter so it should be expected, whereas Dustin ramps up as rounds go.
I don't get where this "Conor was slow or looked like shit" is coming from, he looked much quicker and more precise than Dustin (who is a great striker in his own right) until he got taken down. Dustin went for the takedown intelligently and Dustin beat the best Conor using MMA. Fuck all these people and their excuses, Dustin was the better man that night and showed that he is the better complete MMA fighter and Coach Kavangh admits it.
No Conor does not suck, he is still a great fighter, but he is not this near invincible LW that everyone imagined. People started overrating him due to the Alvarez fight, but that same year he got finished by short notice Nate in under 2 rounds and barely won the rematch. in which he ran away multiple times multiple rounds. Alvarez was a great stylistic matchup for him, the best among the LW's.
There were similar/better performances from RDA/Pettis against Prime Cowboy (who has beaten that same Eddie Conor beat), in which both fighters starched Cowboy in under a round, with RDA doing it in about 1 minute. In fact, RDA starched and dominated Prime Cowboy, Pettis, Benson, and Diaz but RDA was never seen as a near unbelievable LW like 2016 Conor was.
Both Conor and Dustin are great fighters, Dustin simply beat Conor using MMA instead of keeping it pure striking (in which Conor was winning, before getting taken down)