I love this topic. It reminds me of so many other popular topics…
You know you’re a Go addict when… you read this and think, “That’s how long me and my friends usually spend on a club game!” 
Reminds me of “Features everyone secretly wants on OGS but will never be implemented”: Live video connection to opponent during live games 
Seriously though, I like slow games, but I go to Go club for that as it’s the only time when I have 2-3 hours in one block to play Go. My online play tends to be 5-10 minutes here and there, so my online games are nearly all correspondence so I can think about each move. I’ve tried blitz, but it’s not for me.
Decent time settings for a 1 hour club game: 20 min + 3 x 10 s. It’s a bit fast for my liking but it gets the game done in an hour. Then you can play two in one club session.
Or for a 2 hour game (my preference): 35 mins + 10 stones in 5 mins (Canadian byo-yomi) 