Export as Movie > Video, with a video on the timeline = lag

[Daniel]

Exporting video with transparency: Premiere Pro / Chroma Key tutorial

There are a couple ways to use the natural transparency in your Tumult Hype documents in other video editing programs. You can either export as a frame sequence (this is easier) or use the Chroma key function to remove a specific color. This guide shows both methods in Premiere Pro. Note that most video applications support importing PNG frames, so this is the preferred method of getting your Hype document (at maximum resolution) into your After Effects, Premiere Pro, or other video editing app…

This post has another option.