CPU Usage while no sound

Sure.

The script is:

var MIN : MidiInBlock
 
on Activate
 PlayNote(MIN,   // Handle to the MidiInBlock connected to Kontakt
          C3,    // Played Note
          1,     // Velocity
          1,     // Midi Channel
          0,     // Delay in ms before note is played
          10)    // Duration of played note in ms
end 

And the subject discussionn can be found here:

https://community.gigperformer.com/t/first-note-out-of-kontakt-is-delayed/1005/18