Is there a limit to the number of Filler Music Tracks?

[Mad Music One]

...I've noticed that when I load my full collection of filler music (around 30,000 tracks) in the "Fill-In Playlist" section with "Add Directory" selected, I get a lag of 10-12 seconds when I try using the "Add Singer" (putting in karaoke singer's selection), then click the "Add and Close" Button. Seems to take around 8-12 seconds for the Add Singer Window to close. However, when I only load around 2000 filler songs, it reacts/closes much quicker. This happens with my main laptop and my two backup laptops. Is there a limit to the number of songs that I can load? Any ideas

[Piotr]

I have been able to confirm this -- I am not sure what might be the reason, we will try to fix it.

[Mad Music One]

I have been able to confirm this -- I am not sure what might be the reason, we will try to fix it.

...Thanks so much, Piotr! I enjoy using the products you guys offer. I know your primary purpose is designated to Karaoke with Filler music as secondary but sometimes I do have shows that are slow at times (just filler music) or when some people request a variety of different music (maybe a couple of dance tracks during a karaoke show) and it would be nice have them all pre-loaded, then be able pull up any track or tracks (do a search) at anytime, then grab, place or move them around in the Fill-Music Player with less effort than the way it is structured now.... Just a thought and thanks for responding!