Introduce a progressive loading approach in the file viewer so that a low resolution preview is displayed instantly while higher resolution zoom levels are still being processed.

When a file is opened or zoomed, the viewer should:

Render a quick, lightweight preview within ~1 second

Seamlessly replace it with the full resolution image once ready

Maintain smooth transitions between zoom levels

Expected impact

Reduces perceived load time for large images

Enables near-instant visual feedback when opening files

Improves efficiency when reviewing multiple artworks in sequence

Creates a more responsive and fluid viewing experience

Notes for implementation

Use progressive image loading or placeholder thumbnails

Ensure transitions between preview and full resolution are visually smooth to avoid flicker

This enhancement would significantly improve speed and usability in artwork review workflows, especially for high volume use cases.