Is your router dual band? Meaning a 5g and 2.4g connection?
Are you connected to the 5g connection AND are you connected to it through a wall?
If so, 5g connections have a hard tome going through things. It will reduce your ping if you connect to the 2.4g connection.
Other than that, I can't think of anything else that would help, getting a different internet service provider and/or increasing bandwidth - which may not even help.
