I am using iPhone 5 iOS 6.1.3 Spotfiy 0.6.4.2 Spotify Core 0.0.0.999
My iPhone is connected to a power source and charging. I am connected to a WIFI with a strong connection. My download quality is set to "extreme". My internet connection is capable of > 1 Megabyte per second download speeds. I have verified that the iPhone can download at high speed by testing another application. Nothing else is running or downloading on my phone when I try to download a Spotify playlist.
The issue: it is unusably slow when streaming or downloading music from the Spotify library. The problem is intermittent. Sometimes it can download a 5 minute song in about 10 seconds. Other times it takes >10 (or forever) to download a 5 minute song. Obviously it cannot stream and play music that isn't already downloaded when the issue is occurring.
Please do not tell me to turn down my music quality, that is not an acceptible answer! Right now I am streaming an ALAC via Dropbox no problem!
Love the app and the service, but please fix this issue.