Mobile browser games can feel just like native apps because they load quickly...

https://wiki-tonic.win/index.php/What_Is_Thermal_Throttling_and_How_Does_It_Affect_Game_Input_Delay

Mobile browser games can feel just like native apps because they load quickly and save data with caching, so you’re not waiting every time. They work smoothly in portrait mode and have controls that respond well to touch