Fortnite mobile 30fps?

Does anyone know how to get constant 30fps in fortnite mobile?

With a good cell phone.

A constant 30 FPS can be achieved if the necessary hardware allows it.

Is the a52 good enough?

Not really. Overall package is quite neat. But not the performance.

Many people say that you should root your device, does it really help?

No it does not. Except for extended system rights and an insecure system, you don't get any more performance.

So not even if you change something?

Not really. It is not for nothing that the chip clocks in the frequency spectrum in order to generate a balance between performance and battery life.

Likewise, it would not be unlikely if you even achieve the opposite and overclock with a given, the device heats up faster, throttles more and you end up with even less performance than before.