Sound quality issues streaming from Tidal vs CD

As I stated above, my Tidal signal was sometimes dropping and my ISP Technician said this was caused because the cable signal was slightly out of its required range.  This signal variance causes signal dropouts and I suggest you ask your ISP (Internet Service Provider) to check their signal to ensure it is in the required range.   The signal needs to be checked at the street (cable junction box for your house) and also the cable line coming into your modem. Signal checking at both location is required to ensure everything is working to spec.

In addition, please confirm your router is capable of handling the signal load and it is not causing the problem.  As I reported above, my Linksys router was sometimes dropping packets.  My Apple router was also not capable of handling the requested load.  

I cannot comment on your Pro-Ject S-2 Ultra streaming device since I am not familiar with it. 

Unfortunately, dealing with the above issues takes time and patience.  All of these issues can be fixed so your Tidal and Qobuz streaming services sound terrific.   

BTW, Qobuz 24-bit/96 and 24-bit/192 albums sound really good.  

IMO, it’s important too have a good quality router. I use a Nighthawk connected by an Audioquest Cinnamon ethernet cable direct to my Streamer Dac (Oppo). I’m considering getting a linear power supply for the router based on comments read on Audiogon.

I agree with tuberist above that a high quality router is required for Tidal and Qobuz streaming.   I use the Luxul WIRELESS ROUTER KIT – EPIC 3 AC3100 WIRELESS ROUTER & CONTROLLER W/ DOMOTZ, ROUTER LIMITS AND XAP-1510 AC1900 ACCESS POINT.

"This wireless router kit combines high output power and simple deployment. The Luxul WS-250 offers the Epic 3 dual-band wireless AC3100 gigabit router, and the high-power AC1900 XAP-1510 access point. Including 802.11ac wireless coverage, Domotz remote management, family scheduling with Router Limits and roaming is solved with the built-in wireless controller with Roam Assist™".

https://www.luxul.com/kits/ws-250.aspx

Even though you are paying for hifi through Tidal, double check your settings to ensure you have selected the best sound quality.

I have a PC to DAC over USB and using the DAC’s Window’s driver to drive the USB makes a huge difference, so whatever is driving your source-end USB could be the bottleneck.