Just to let you know, new threads in site feedback forum are rather discouraged. However, do use one of the links within that subforum as my fellow moderator Doomaid said:
<snip> Lastly, next time you have a questions about this you can put it in the "Site Support/Help (Ask technical questions here)" thread here: http://www.crunchyroll.com/showforumtopic?id=1&pg=0
Oh and thanks for being polite and such about everything, it's nice ^_^.
I hope you've already gotten an answer to your question. As offered by the members here, paying for downloading anime and supporter status are not together as a whole 2 in 1 package. The download speed should be also due to site traffic, and perhaps your internet connection speed.