South Las Vegas SLOW internet

Glad I checked here as I assumed I'm not the only one.  We have Gigablast in Southern Highlands, and I have not seen speeds hitting even 50% of what's advertised for the last few months.  Upgraded the modem to MOTOROLA MG7700 24X8 Cable Modem Plus AC1900 Dual Band WiFi Gigabit Router with Power Boost, 1000 Mbps Maximum DOCSIS 3.0 - Approved by Comcast Xfinit, which was reviewed as one of the best on the approved Cox list.  Ordered brand new CAT6E cables to make sure it wasn't a cable issue.  I've done many resets of the modem through Cox support website, as well as hard resets.

I've been in IT for years, and support loves to point the finger back at our house and hardware.  The online agent today insisted I was at 85% of my usage and kept pushing a sell to upgraded to unlimited data.  After explaining that I was currently at 64% utilization (cox app), and that I monitor our usage regularly, and have alerts set up, he just kept pushing more data.  Bandwidth and data usage are completely different issues.  If I was getting anywhere close to the advertised 940 Mbps, I'd gladly upgrade to unlimited data.  I haven't hit the usage cap at all over the last 4 months (or longer), so what is Cox doing to fix speeds?  I've only been a customer since 1998, but I guess loyalty doesn't get you far.

Speedtest.net results while chatting with support today.  AVG of 33% of the DL speeds I'm paying for.  Maybe we should reduce my bill by 66% if we can't give the speeds that are advertised:

DL Mbps / UL Mbps

316.67 / 8.07 (33%)

220.06 / 19.86 (23%)

315.03 / 20.67 (33%)

252.58 / 16.65 (26%)

472.14 / 17.84 (50%)