I am running into some very adnormally slow DL speeds as well.
My ISP itself supports 200MB DL, 6MB upload.
At first it was ok, 10MB to 20MB DL speeds. Then it starts fluctuating a lot and I start seeing speeds as low as 400KB. Now I am seeing DL speeds as low as 40KB or even just %KB and I am like, "what in the H311 is throttling this so badly that I am seeing early 2000, infancy of broadband speeds?"
If the Devs are making the Gameplay servers share hardware with the file servers, then that would explain a lot and someone needs to tell them that the industry has changed since trhe early 2000's, you don't share server hardware and direct internet connection between the game servers and the file servers any more, it leads to massive packet loss and easy data corruption, when the file server is sharing hardware and internet line with the gameplay servers. MMO's learned that before 2010 and that idea became an industry standard for all games afterwards, simply because of the sheer stability difference made it worth for all companies both big and small.