Batting .1000 is only 10% on time if you're using a baseball analogy. Batting 1.000 is a perfect record. Ty Cobb was lifetime .366 and also had a few seasons over .400.
But I agree on CA flights on Copa, Avianca and TACA/LACSA before them. I think Copa is 92% on time on the routes I fly with them. I also think Copa and TACA pad their schedules to help with their stats. Plus in CA they stuff and go and often leave early if fully loaded while AA seems to find a million reasons to faff about even when they are loaded ahead of departure time.