My two cents ot this issue.Thanks for the help! Sorry I wasn't clear about my choice of streaming Qobuz. I am using the Qobuz application. I just noticed that emailing a "large" sized photo to a friend, the music choked again. My Metronet internet service isn't supposed to throttle, and no-one else in the house is on a computer. Maybe I should Metronet them after running some Internet speed tests. I certainly pay a premium for "premium" internet speeds.
I access Qobuz on a two year old PC, with Windows 11, 16GB RAM, 11th generation i5 and SSD C: drive connected in an NVMe M.2 slot. It is a medium-performance PC, suitable for normal use (excluding demanding games). I use the Qobuz Studio application for Windows, while doing other tasks (accessing web pages, reading mail, Office 365, processing pictures witn Adobe Lightroom Classic, etc.). The PC is connected to an external DAC via USB and I use ASIO as audio protocol (same outcome witn WASAPI exclusive)
The Qobuz listening experience depends mainly on two factors: the resolution of the music and the processor workload resulting from execution of other applications. With music at 16/44.1 it runs smooth and uninterrupted. Up to 24/96, interruptions occur when I run CPU-intensive background Lightroom tasks such as exporting images; the rest of the time it runs smoothly. At 24/192 interruptions occur frequently, but always associated with running other applications, so much so that I have limited the resolution of Qobuz files to 24/96.
Curiously, in the audio system I have in my living room, I use Qoboz on an iPhone and I have no problems even at 24/192 (iPhone > Lightning port > Apple USB adapter > DAC). I also have no problems playing local FLAC files at 24/88.2 or 24/96 on the PC with the Foobar2000 application. I have come to the conclusion that the Qobuz Studio app for Windows has performance issues in its Windows version, but I can live with them.