Fantasy subscriber here. When I first started downloading the various fantasy sound sets most downloaded between 900kb and 1500kb or higher and finished in a 30 to 40 seconds. Download speeds now bounce from 2kb to 400 kb to 1670kb down to 300kb then okb and download times cycle from 40 seconds up to 14 minutes.
With Syrinscape Onlines recent release we've had a lot more server traffic than usual which slowed things down a bit. Our shiney new server all seems to be working great now though so hopefully that should get things running nice and smooth again. If your still having problems email us at support and we can take a look to see if it's anything specific to yourself