One feature that helps speed workflow for many photographers when making their initial selects and rejects is Auto-Advance.
While in Fullscreen View, you will see a button labeled Auto-advance. If there is a checkbox, Auto Advance is enabled. This means that applying a color label or star rating, or mark as reject will cause Photosmith to automatically advance to the next image.
We've found that enabling Auto-advance during the first few passes on a set of photos can greatly reduce the number of taps and swipes, making quick work of organizing your photos.