Problem with the Auto-uploader

I like this app very much for a couple of reasons, mainly 1000G of space, but I have a problem with the auto-Uploader. It takes days to auto-upload my photos. It seems the app couldnt run in the background. Even when I run the app, its very slow. Although I have a good connection, even for browsing and downloading from Flickr, but uploading is a pain.

Sadafff about Flickr, v4.3.0