In the default setting, the app uses preview images for the preview playback, in order to keep the audio and video playback in sync. Particularly on devices with slower hardware or when using movie filters.

Changing the preview quality to a high preview quality setting may result in more frequent frame drops. These frame drops happen automatically, otherwise, your audio would no longer be in sync.

Rest assured, when exporting the video, the app will use high-quality images only, regardless of the preview settings.