There's a lot of reasons why you may be experiencing poor playback with Popcorn Maker, but generally it's because there are a lot of video events. Exactly how much Popcorn Maker can handle before it gets bogged down is dependent on how fast your internet connection is, and how fast the internet connection is for your audience.
If you start to notice poor playback, try the following
Reduce the number of video clips on your timeline
Turn off the video for some of your clips, and use only the audio
Try not to trigger no more than two video clips at the same time
Why can't I do X, Y, or Z?
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