Travel time unrealistic
I was wondering about the calculated travel time when planning a route. The picture attached show me, while planning, that the travel time is 51 minutes and 7 seconds which is totally unrealistic. But if I select the travel time statistics in the menu, it shows me that it will take me 3 hours and 11 minutes which is very realistic. It also shows me that hard bicycling will take 48 minutes and then it seems that the original estimate of 51 minutes while planning a walk is rather strange.
Where is this 51 minutes estimate coming from?