Taking A Long Time Opening Websites

Hello everyone, I am new on this forum and this is my first post here. I could not find out a suitable place for creating a topic, so I am posting it here. Recently I am having a problem while opening website in the Chrome browser. Some websites open smoothly, but some take a long time. My internet connection is well. Then I don’t understand what could be the issue. Can anyone help me to figure out the problem? Any help would be highly appreciated.