it would be nice if the altimetry graph were more visible during the routes
can you explain to me how to better visualize the elevation map
Sorry but you can’t. That’s a thread in the Feature Requests (i.e. users asking for new features) forum.
The best thing you can do for now is to check out the elevation profile in advance with a resource like this - Complete Master List of All Zwift Course Routes - Zwift Insider