the sound of key-off noise and Hammer noise

[Jpro600k]

I feel that the sound of key-off noise is not good.
Key-off noise always the same sound.
Personally I want to change.

I feel that the sound of Hammer noise is not good.
I think the sound is light.
Personally I want to change.
Hammer noise always the same sound.

Can not it adjust by itself?

[Jpro600k]

Key-off noise sounds like hiccups.I think the sound is too light.If you use, the piano sound becomes too cheap.