Dorico IPad playback stutters

Sometimes if open a score in Doricos IPad , the playback stutters like in the attached video. What’s going on here?

Which iPad model are you using? Are you using Iconica Sketch?

I’m using IOS 14.7 and not Iconica Sketch.

Which model of iPad?

OS 14 should work, but it’s the lowest/oldest supported OS. Unless you’re on a very old iPad, you should be able to update the OS.

Has this behaviour only recently started happening? Is it with larger files?

You can create a Diagnostic Report (from the right-hand corner menu), which may be useful to the development team.

You can adjust the audio buffer size on the Play page of Preferences, which might be worth a try.