I have been riding Zwift reasonably often the past month or so and my usual power output is in the 200-220 Watts range and my speed average is always about 30-33 km/h. This is based on Watopia Island and a couple of rides at Richmond on both my Wahoo Kickr here at home and a fluid trainer away at work.
Since London came online I am putting out the same power 200-220 Watts but I can’t seem to get my average above 28 km/h on both the kickr and my fluid trainer. I am starting and stopping at the same elevation so it isn’t like I’m finishing at the top of a hill which would keep it down. Any clues??