Phones today have plenty of power to generate 120 screens per seconds. Capping them with a screen is a terrible idea. Smooth form a decade ago isn't the same as smooth of today.

20 years ago I was gaming at 30fps and called it smooth. Now 120Hz feels like bare minimum.

I still game at 30 fps and don't really notice it, but scrolling at 30 fps gives me a headache.