Final Cut Pro X: Control playback quality and performance
You can adjust settings in the viewer to manage visual quality and playback performance. For example, you can increase playback performance by displaying video at reduced resolution or by using proxy media.
Set playback quality
Click the View pop-up menu in the upper-right corner of the viewer, then choose an option in the Quality section:
Better Quality: Choose this option to display full-resolution video frames in the viewer. This setting may decrease playback performance for high-quality, large-frame-size video.
Better Performance: Choose this option to display video in the viewer at reduced resolution. Decreasing the size of the media maintains playback performance even for very large media files.
Choose the type of playback media
Click the View pop-up menu in the upper-right corner of the viewer, then choose an option in the Media section:
Optimized/Original: Choose this option to use the optimized media (in the Apple ProRes 422 format) for playback. If optimized media is not available, Final Cut Pro uses the original media for playback.
Proxy: Choose this option to use medium-quality proxy media (converted to one-half resolution) rather than full-resolution media for playback. Choosing this option increases playback performance but lowers the video quality. In Final Cut Pro, proxy media is in the Apple ProRes 422 Proxy format.
You can use the Info inspector to determine whether optimized or proxy media files exist for a given clip. For more information, see View a clip’s information. If you choose Proxy in the View pop-up menu and no proxy media file exists, a Missing Proxy File alert icon appears in the viewer.
Important: If you use proxy media for playback, make sure to switch back to optimized/original media before sharing your project. This ensures the highest quality in the exported file. For more information, see Sharing projects overview.