Using DNS in Singapore doesn't really help for your latency to the server.
Latency is like the time it takes for you to send a message to your friend and for them to respond. In the world of the internet, when you click on something or ask your computer to do something online, it sends a request to another computer far away. Latency is how long it takes for that request to reach the other computer and for you to get an answer back. If it takes a long time, everything online feels slow, like when you're waiting for someone to respond to a text.
When you ask your computer to load a website, it sends a message to another computer far away called a server. That server holds the information for the website you want. The message travels through wires, cables, or even space (if it’s using satellites!), and when the server gets it, it sends the website information back to your computer the same way. The time it takes for the message to go to the server and back to your computer is what we call latency. The quicker it travels, the faster things load!
You can't improve this unless you're able to take a shorter path to the server. The physical distance creates unavoidable latency... the speed of light is the limiting factor.
What the Latency Test is showing you is that servers in Singapore will perform best for you. Amazon is hosted on a CDN (content delivery network) so when you request using that test it pulls from a server closer to you automatically.
To improve latency over long distances, here’s how it works:
Use servers closer to you: Imagine a game of telephone. The closer the person, the quicker the message gets to you. Using servers that are closer (like a local one instead of one far away) speeds things up.
Optimize the route: Think of taking the quickest path home. By using smarter routes (like special internet paths called "content delivery networks"), the message travels faster, just like choosing a shortcut.
Use faster connections: Just like a fast car on a highway, using better internet connections helps the message travel quicker, even over long distances!