It's not a huge time commitment. During the season, a few seconds a day to set lineups. Once a year (February) we have a new player draft, so that requires a bit of time to prepare for. But outside of that, the minimum ask is that you set lineups most days during the season and respond to most trade inquires. Some owners spend a lot of time working the waiver wire and trying to make trades, but there's a pretty big gap between the time spent by the most active owners and the minimum time required to still be a contributor.
I think you'd be a great addition and would love to have you join BTW