XBMC CPU Load when doing ...nothing?

HI all,

I have installed lubuntu 12.04 + XBMC eden on my HTPC based on intel G620T processors. Everything work well but I have the feeling that i can optimise more my setup. I realised that xbmc take 6% of my cpu all the time even when................................ i do nothing.

Do you think it is reasonable? I have read a lot of topic on it seems that for some people xbmc fall to 0-1% when it do nothing. I want to have this kind of result (for temperature/fan issue). Do you think it is possible and how?


Thanks a lot