I was a college swimmer, qualified for Olympic Trials in 2012 and 2016. There are absolutely slow and fast pools. It basically comes down to two things:
1. The depth - which is only 7ft in Paris, unusually shallow for a competition pool.
2. The sides. Does the water spill over the sides into the gutters, or smash into a wall and bounce back, creating more chop.
A trained eye can see all the swimmers in Paris struggling in their last 10-20 meters (heck, an untrained eye can spot some of these). Bummer that it makes the meet feel slow but at least it generally affects all the swimmers equally
1. The depth - which is only 7ft in Paris, unusually shallow for a competition pool.
2. The sides. Does the water spill over the sides into the gutters, or smash into a wall and bounce back, creating more chop.
A trained eye can see all the swimmers in Paris struggling in their last 10-20 meters (heck, an untrained eye can spot some of these). Bummer that it makes the meet feel slow but at least it generally affects all the swimmers equally