Sound and video issues on Freetube

Hello folks.
Installed Freetube client on my HTPC machine, running EOS.
All good and dandy, but noticed that I can play 4K videos on YouTube/browser and sound quality is as expected, while I have a USB DAC connected.
But in Freetube, as much as I tweaked the settings, was not able to play content as in browser.
Is it something that I miss, is anyone more familiar with Freetube and can chime in?
Thanks in advance !