Nature of the beast tbf in that having 200 world nations parade their way around is going to take time. And that's even with the fact that on the TV feed, each one only got about 30 seconds-one minute of screentime. Though it was hilarious to see the last two boats being just an armada of US athletes and then an even bigger showing of French ones.
I liked the trip from the Eiffel Tower to the park by the Louvre to light the floating cauldron tbf.