When playing at a mobile casino, you want everything to work fast and smooth....

https://sierra-wiki.win/index.php/What_Makes_Players_Abandon_a_Mobile_Casino_for_a_Competitor%3F

When playing at a mobile casino, you want everything to work fast and smooth. That means quick load times, easy-to-use menus that fit your screen just right, and buttons that make sense for tapping with your fingers