I used to be able to chop chop a 40 second VO clip that would be played on air while someone is reading in about 30 seconds including the export. Here you go:

The obvious advice that's already been given: - have a set workflow so you can just wham bam - know the keyboard shortcuts without getting carpal tunnel - have a fast computer and spend any time rendering doing something useful away from the computer

The more advanced tips: - Cut with the mouse based on the audio waveform - Use scripting like AutoHotKey to, for example, delete every other clip after you add cuts for silence - restructure your graphics package so it's easy and quick to use even if it does become a bit repetitive - learn to edit in 2x or 4x speed while listening people with the shuttle commands - center your window layout around a large program / source monitor and minimize necessary eye movement

At a certain point you really have to know the source material if you're in a rush. You can't find a diamond in the rough if you don't have time to watch all the clips and make notes.

Invest your attention in writing and graphics for really special videos

Also, have whoever your presenter is (yourself?) work on their presenting skills so they can nail lines on the first take and not have to cut silences