While the leaderboard itself has no way of knowing the time spent on the quiz or even if the scores you send to it come from a quiz to begin with or somewhere else, you can certainly build something like that using Sheets if you can come up with the appropriate formula:
- Save all the data you need to the Sheets (e.g. name, score, time, etc.)
- Use SheetsSet to write a formula that will return the list of users sorted based on your preference
- Parse the list into Storyline variables and display them on the slide as needed

Sorry, missed one step. After you use SheetsSet to write a formula, use SheetsGet to read the formula result back into Storyline.

I need my widget to position the winner at the top of the table under 2 aspects: 1) higher score and 2) less time. I want it in me table display .
It doesn't work for me if the table only has a sorting aspect, it takes time and score.

Someone will reach out to you by email to suggest a solution that might work for you.