If you are a blogger, it is important that your blog is optimized for speed because it helps increase your blog experience and engagement. It is also an important factor in SEO.
Optimizing speed is not just about having a good web hosting provider. There are several factors that affect speed like your theme, how the website is coded, how you use your cache and other things that can affect how your page loads whether your visitor is using a fast or a slow ISP.
Skyje.com discussed the 5 ways to speed up your WordPress blog, read the full article here: http://skyje.com/speed-up-your-wordpress-blog/.