The purpose of blogging activity is to get many visitors, to get people reading your blog. So that, blogger must care about the visitors. As blogger you must make them enjoy reading your blog. Make your blog as wonderful as you can. Make the visitors interesting and have interesting experience reading on your blog.
One of enjoyable activities in reading a blog is without having trouble in that activity. What will happen if your blog loading speed so bad or so slow? Do you think the visitors will be sincerely waiting it? No, there are thousands even millions blog and websites they can read. They will prefer move to another blog or website which have good loading speed.
Therefore, it is important for bloggers to know the loading speed or their blogs or website. To know it, you can check here: blog speed test
Once you open it, you will see a page like this
The result is as follow: