Average latency?

I had had Cox for 13 years now including 1 Gbps the last couple and thought my latency was ok, but heard recently it could/should be lower.  My latency averages around ~34ms, but then was told it could be less than 20ms or even 10ms (?).  My download and upload speeds are good.  Latency is ~34 ms both going straight from cable modem to a computer or using a wireless router (802.11ax).  The coax wiring all appears ok.

Thanks