Don't know if it's just me, but the OSM maps seem extremely laggy to the extent it's basically unusable. On the MacBook the airline summary page is exceptionally slow and navigating the new route map is impossible. Meanwhile I also tried it on the iPhone and it consistently reloads the page whenever you attempt to interact with the route map.
Same, so laggy. I can't even look at the "Airline Details" anymore, half of the page is blank. When I scroll, it does weird things. I loved Google Maps. Even thogh they won't bring back Google Maps, I hope this gets fixed.
Edit: "My Route Map" is laggy too, on "Airport Details" there is no map shown.