Here in Germany, it's all radeln, and when I commute along the ordinary bike lanes, I usually go as fast as I can, which is something like 20-30km/hour. That's nothing like racing, but it not moderate and so I am overtaking more casual cyclists all the time.
As far as I know, people who ride like me or faster are not frowned upon here. We are just expected to do our overtaking safely and politely.