Node Congestion

I am posting to request an escalation to the local network engineering/plant team. I am experiencing severe upload latency spikes and constant lag that makes online gaming completely impossible.
We have already tried troubleshooting everything at the apartment level:
 * Multiple Xfinity techs have been out.
 * A brand-new line/drop was run to my apartment.
 * I’ve put the gateway in Bridge Mode with a third-party router and enabled SQM, but the upload latency spikes remain identical.
Because this happens on a brand-new line and with different routing hardware, this is an infrastructure/plant issue. My local node appears to be heavily congested and likely needs a node split.
Could an Official Employee please escalate this to the local area engineers to check the node's upstream utilization and SNR history?
Thank you.