How to decrease my ping in Counter Strike 1.6?

I'm playing on a server that is located in another country. Thus my ping there is about 160-180 sometimes goes up to 200... For me it's ok, I don't have any lags or anything but people ask me to fix it. How can I make it lower to play on that server. I need to make it at least 100-120 ping, they said that would be good enough. And I don't wanna search for locals and leave that server because I like it there. What can you suggest to me to low my ping on that server? Thank you