When you play at a mobile-first casino, you want the app to load fast and menus...

https://wiki-tonic.win/index.php/Why_Do_New_Casino_Games_Feel_Made_for_Phones_First%3F

When you play at a mobile-first casino, you want the app to load fast and menus that are easy to tap on a small screen. Smooth navigation matters so you can find games quickly without frustration