Still getting 1Gbe speeds after upgrading to 2Gbe

I recently upgraded my home lan to using a Ubiquiti cable modem that support 2.5Gbe from the modem to my router, my router supports 2.5Gbe and 10Gbe, and my nics are a mix of 10Gbe and 2.5Gbe and have confirmed these speeds to be functioning internally as expected.  However, I am maxing out on my internet speed tests at ~800Mbps after waiting some time to make sure the device is fully provisioned.  Any ideas on next steps that I should consider?