High outgoing bandwith usage while playing

Hi
i have Kodi 17 with OSMC on a Raspberry Pi, i see some IPTV channels with IPTV simple client and i detect a high outgoing bandwith usage when channels are playing, i have ADSL with low upload speed so its impossible to do anything else by internet while whatching TV

I made some tests, the same channels with the computer and VLC, the outgoing bandwith usage is about 20% that uses Kodi
I cant understand why that difference, can anybody tell me if its a configuration problem or something else?
sorry about my english Frown

bandwith usage with kodi http://imgur.com/ETjC7vT

bandwith usage with vlc http://imgur.com/a/kUFCV