Hi Kev!
You can manipulate your video so that they text only appears for a time you decide you'd like it to. For example, you could have the text over the first five seconds on one slide, you could continue the video for the next 20 seconds on a second slide, and then you could continue and add text over the next 5 seconds on a third slide. The video would play continuously, but the words would only appear the first 5 & last 5 seconds. Does that make sense?
Thanks for asking,
Team Spark