When viewing the list of uploaded images, the request to view the thumbnail first deletes all the thumbnails for that image, then checks to see if they exist, then re-creates them; even if the image hasn't been changed.
I'm using a custom back-end to Azure Blob storage, and this behavior is causing our entire site to stall when scrolling through large directories of images. How do I prevent it? (Either the deleting or the regeneration).