A mobile browser game can feel just like an app when it loads quickly using...

https://wiki-neon.win/index.php/Latency_vs_Download_Speed_for_Games_-_What_Should_I_Care_About%3F

A mobile browser game can feel just like an app when it loads quickly using caching, plays smoothly without lag, and works well in portrait mode. Touch-friendly controls make it easy to play on phones, and consistent performance means fewer interruptions