Hi

i have a CASIO digital piano (PRIVIA PX-300).
The sound, and the action are good. My only complain is about its key noise

When i play at a fast tempo, the keys make their own concert CLINK, CLANK, CLACK, PING, PONG...

It is really annoying, and i often end up playing trough headphones in order to not listen to the keys's noise. It becomes a pleasure to play this way, but it is not the idea, after all

I did not play on many pianos, so i cannot determine whether this is unavoidable or not. Perhaps i am oversensitive, but who knows...

What do you think?
On the other hand, do digital pianos have more key noise than acoustic?
PD: technical service say the noise level is normal, but i am not sure.