Ability to Line Up AI Voiceover with Video Sections

I am creating a Supademo and added a video recording as one step so that the viewer doesn’t have to click through several individual steps. I added several hotspots to the video and enabled the AI voiceover for the video step, which is using the hotspot text, however I cannot line up the voiceover with the hotspot displays. Instead, the voiceover just narrates the text - I used expressive mode to add pauses between each spiel, but it isn’t a long enough pause for the voiceover to line up with the video sections I want.