No.
Because of your internet. If your internet is slow your downloading is also slow. Your internet must be fast.
Microsoft has been releasing a lot of updates for Internet 8.Internet Explorer 8 is amazingly fast on Windows 7.It is recommended to use Firefox, or Google Chrome on a Vista, for some reason Internet 8 is still really slow on vista.
I don't think a theme alone would slow down the Droid, but the apps you have running along with the theme may cause it to slow down.
yes, it is proven that the internet can slow down reaction time.
it depends on how big is the internet game but yes they can slow it.
Yes, they can take up a lot of RAM and slow down a computer.
in movie maker you got to video effects : slow down half (only in vista or XP version)
yes, a little bit!
It's not likely. Protected router would slow down your internet especially if you have security options activated such as MAC filter, firewall, security for wireless networks and so on.
This could be down to your internet connection.
Using windows media player instead will not slow your computer down