Upload speed problem and HTTP Error 400

[r3ap3r]

Hi,

I made private torrent for promotion my friends band: Banisher

this is my torrent: http://hotfile.com/dl/91685580/752c610/Banisher_-_Slaughterhouse_2010.torrent.html

I have 100/100 Mbps port and when I trying download it's only max 350 kB/s!! Why?!

There's now AV software but only windows firewall (exception added UPnP enabled)

Any help will be appreciated!!