Hey tubeguy80...
Experienced wire guy here...see posts. For the last couple years, I've focused on a more professional room tuning plus adding the BACCH dsp, as my budget allowed. I chose to delay upgrading my 20' run of pedestrian, decently made, Ethernet cable that runs from my modem to my PC source. My long-time IT audio buddies, who lean much more objective than subjective, strongly advised "don't bother."
Well, a couple months ago I DID bother, changing to a 3.0M run of DH Labs REUNION Silver Sonic Cat 8 Ethernet cable, $250 less the "frequent flyer" discount. My low expectations were immediately startled, and yes, it got better in the next several days. I think the magic is in the absolutely firm connectors, the most snug-fitting, purpose built, Ethernet plugs I've yet encountered. My results are akin to a preamp upgrade. For quality and safety assurances I buy from The Cable Company. Disclaimer: I've no professional affiliation, simply a very positive history.
More Peace Pin (bold print for old eyes)