How can i optimize the dsl connection?

hello i've a tp-link modem router and i want to optimize the adsl2+ connection for a low ping and stable connection here's some information that may help :
hardware information : this router tp-link td-w8961n v3.2 if you look up for this router hardware you're going to find it similar with tp-link td-w8901n v3 which is TP-LINK TD-W8901N v3 - WikiDevi.Wi-Cat.RU (click on the link to know more about the hardware) this router include also a telnet protocol with some commands such as
but i don't know if i can make any change with this commands but i'm sure you guys can do it

OpenWrt does not support TD-W8961n v3

Try posting on the TPlink forum.