So we are having problems with one of our client’s experiencing extremely slow uploads to Amazon S3. We just reached out to support to find out what can be done but from briefly searching the Internet it doesn’t seem to be that big of a problem. I’ve found a few instances of others having similar problems but nothing concrete in solving the actual problem. I have enabled multi part uploads and it is at its default setting. If I can figure it out I hope to report back here and let you all know.