While I wish I had a "'trick" for this passage I'm afraid that once you're up in those shark-infested waters there aren't many options. Practice slowly and aim for a target tempo one or two clicks lower than your favourite recording - with the adrenalin at the audition it will be fast enough!
However you can try and simplify the fingerings a little bit by freeing up your hands. Some suggestions:
- do not use the left hand E-flat resonance key (except on the F if you must); at that speed it doesn't make a difference acoustically, and it's good to have your LH pinky up to free your hand up as much as possible;
- play the A only with the left hand (1 + 2 + 3 + thumb on high A and C#)
- do not use the whisper key on the G
One more suggestion about the resonance key in general: use it only on E, F, G and A above middle C. It will help simplify your technique and can also even out the tone from note to note in the high register, and in specific passages then you have the option to add the resonance key if you like the sound better. In my experience the 'resonance' effect of that key is often an illusion, as the low E-flat tone hole is actually directed at you, and not towards the audience.
Hope this helps, and good luck!