Pulseaudio dropouts in Kodi only

[Killerbee]

I am almost there..... my perfect xbian-setup.

I am running xbian on a raspberry-pi 3 in combination with a HifiBerry AMP+.
In the background a squeezelite daemon is running as well. I configured kodi and squeezelite in such way that both can use the hifiberry amp. Great sound for my movies and music!.

My next step is to make it possible to stream music (bluetooth) from my phone to raspberry pi.
I installed pulsaudio.
I am able to stream and play my favorite music!

BUT As soon as I install pulsaudio the sound in Kodi is bad! Dropouts when I play a mp3 or watch a movie.

Audio quality from Squeezelite and bluetooth streaming are both OK. Only audio quality in Kodi is bad.

Does somebody have some suggestions? I have tried various audio settings in the expert menu but no luck.

Thanks