How to optimize excitel provided syrotech router for gaming ?

Messages
1
Location
Delhi
ISP
Excitel
Looking to do some port forwarding and DNS changes to optimize it for gaming, maybe set high priority in QoS.

Speed is fine my main motive is to get low ping in online games like warzone and apex legends. Any help is appreciated. Also is it possible to turn on ipv6 on an excitel connection ?