Is there a way to temporarily unlink the smart previews from the original raw files? When I am editing on a laptop with just smart previews, it takes <1 sec to load up the image. When the laptop also contains the original raw file, it takes >5 sec to load the same image. Instead of moving original files off the laptop and then edit the smart preview, is there a way to tell lightroom to use just the smart preview and not look at the original raw files? I am using lightroom 5.