Like 10 minutes/player... I don't know if it's an actual thing, but seems like it could be pretty hilarious.
I tried it but I ran out of speed halfway through. Ha ha... ahem....
We have played games fast, using the timing cube. Formula d with 10 secs turns is amazing. 7 wonders works well with short timed turns. I think these games play as different games, better games, this way.
Not tried Le havre but I've never experienced it slow to the point I feel it needs to be sped up. And playing this one fast I reckon would just feel like Le havre fast. Not an improved game.