XML files exported from Cubase : Tempo and velocity values are missed !?

Yes , I made music with a lot of different notes velocities and tempo changes and I would find all of them in the exported files , whatever it is .mid or . xml . And this is normally possible with all the Notations software I have . My impression is that XML used in Cubase shall be updated because if it is possible with simple Notation programs it shall be possible also in Cubase.
Regarding the section of the Manual about XML :
> (…The MusicXML file format can be used for the following purposes:

  • Representation and printing of sheet music*
  • Exchange of sheet music between various score writing programs*
  • Electronic distribution of musical scores*
  • Storage and archiving of scores in an electronic format*
    MusicXML music data also contains elements that define how a piece of music should sound.
    this could be the description of PDF format while the focus of the problem is in the last sentence
    (MusicXML music data also contains elements that define how a piece of music should sound.)
    IN FACT IF I OPEN(with “Notepad”) AN XML FILE EXPORTED FROM MY NOTATION SOFTWARE I FIND THAT FOR EVERY NOTE THERE IS ALSO THE INDICATION OF TEMPO AND DYNAMICS
    (Velocity) WHILE THESE ARE NOT EMBEDDED IN THE CUBASE XML.

The result is that you cannot use XML from Cubase for playing because the result is a pain
so if it can be used only for printing and archive there is already the print PDF option
Thanks