No-such-thing 
Really, it IS TOO FAST. There are several reasons:
K119 has a Spanish style in it. It seems that pianiststrongbad didn't get it . A clear example of it are the opening chords ( a guitar ) . The typical rythm in the repeated notes, right after the opening chords, are spanish castanets . The rythm is TA-ta-ta , TA-ta-ta.
You can't play THAT fast the castanets while dancing "flamenco". Maybe you could play fast the castanets but the dancer wouldn't be able to follow the dance.
After the quick scale , you have to be emotional, to the Spanish style. Impossible to transmit with all the speed.
I suggest you listen to "flamenco", the spanish dance. ( I don't know how to say it in English)
In :
www.claudiocolombo.net you can find a good example of K119.