Airplay stuttering with Raspberry

Hi, this is my first post. I have just installed Volumio and the first problem I encounterd was related to the Airplay. Raspberry is connected to the LAN and when I try to send music from my Ipad 2 with airplay the music starts nicely and after a few seconds stops and continues again, this goes on and on. The problem seems to be there only with Volumio as when I try other MPD’s this behaviour is not there. Any suggestion?