Pictures at an Exhibition? Short notes should not get short-changed. Sound rules.
#1. Play the first note of your passage with your best centered sound and sustain it for a full breath.
#2. Play the same note while fingering the notes of your passage on the lead pipe.
#3. Play that note once again but articulate the passage as one long note with many tongues.
#4. Now slur the passage maintaining your great tone.
#5. Next, play the passage with the correct pitches but with all long notes.
#6. Add some length to the short notes but keep the tone full.
#7. Gradually approach the correct tempo and articulations of your flashy passage with no loss of your full sound on every note.
Flashy is fine, but sound rules.