It was such a great article on wordpress development. Here, I would like to add some points in your blog which are as follows.

1. Poor Hosting
2. No Caching Enabled
3. Large or Unoptimized Images
4. Too Many Plugins
5. Not Using a CDN

I hope these points help your readers. If you want to develop your ecommerce website, you can visit an IT company like Alakmalak technologies. They have an experienced team in this field.