Big Playlists with more than 20k songs not possible?

Hi,

I'm new with my NAD M10 and BluOS. The most of the time I listen to my local library CD or HDD.

I manage a big playlist with winamp more than 20000 songs and winamp can search within, play shuffle etc. without any delay.

The BluOS Controller on my Windows PC not. It lags and cpu usage runs up high also the ram. The list load is very slow. It is also not possible from the ipad and android device without any issue in speed.

The Index has finished his job and all songs are in the library from what I can see :-) 

I also testet with network cable and with wife same issue. I use Unifi Hardware and controller for the network. The Network is stable and all other plattforms are working correctly.

I hope you can help me or tell that this is not possible.

thank you

Christian