Create copies of picture which have a smaller size for visualization.
Because of the pictures which are uploaded CR2 or JPEG and have a big size the loading time for an album (even using 100 Mbs networks) is high. A feature to allow the creation of small size copies used for visualization in the app and website should be added in the settings. A picture can have 50 - 100 KBs and a smaller resolution. Also progressing loading of the pictures could be used to improve the loading time.