How do I determine which node

How do I determine which node is the best for me? because I am still lagging and freezing a lot in Maplestory 2!

It’s pretty hard to suggest a specific node because their conditions
being changed continuously.

You can pick any node that shows lower RTT avg/stdddev with flat graph
to optimize your connection except the game has been region restricted.

mudfish.net/docs/en/faq/nodes.html#should-i-use-the-basic-mode-and-set-the-better-node-near-game-server-location