Streaming, Getting the Signal, Then What?

I feel so stupid not getting the streaming thing though at almost 70 years old I have moved more toward digital then any time previously.  My PS Audio AirLens into a PS Audio DirectStream DAC MK1 gets its signal from a Netgear Nighthawk CAX80 modem/router purchased in Jan. '22.  I know I get a signal. I hear music play. Is this Netgear product better than the freebie that the ISP provider installs?  I think so. But following discussion FORUM I tend to think I may be able to do better, maybe?

So chime please as to what perhaps I should considered considering my AirLense & MK1 DAC. PLEASE, do not tell me why what I have could be so much better if.... This post presumes I have the equipment I have. From modem/router to sources is a high end AudioQuest ethernet cable product. That also is out of the equation for whomever wants to opine as to my cable choice.

Recommendations please.  If it matters the sources feed into a PS Audio BHK Signature pre, then into a pair of PS Audio M1200 monoblocks.  Speakers are Ohm Walsh Tall 3000. Love love love the flexibility I get from omni-directionals.  O.K., you can share your thoughts about my Ohms. But budget doesn't allow MBL or German Physiks.  Thanks one and all.