It’s nice. Thank you for your testing to get a goal.
I’m sorry but Desktop and UWP licenses are separated. UWP version will be published within almost two weeks. Please wait a while (Fully functions of the Desktop version are available during one month).
You can increase reading buffer of the TuneBrowser. In prefernces dialogbox, tree item “Playback settings” – “Decoding”, property “File acessing (accessing)” – “Memory cache size (KB)” is 256 (KB) now. Increase value.
Thanks.