What are you using to test this?
It's all based on the test server that you connecting to. For example:
www.speedtest.net you can manually pick the server that is closest to you and your ping will be smaller. The father away the server the higher the ping is.
I want to make sure you are talking about this type of ping and not basing this issue off a game server that you used to have a certain ping to.
Are you testing this on WiFi or Ethernet connection?
Note: Anything over 150ms ping will result in noticeable lag