WordPress is the choice all over the world for ease of setup along with on-page SEO built into the way they layout content. The purpose being to help you get your site and content out fast without spending days to months wasting time.
Issue for many with the homepage blogroll and sidebar having bold and or italic text is due to the way Acabado pulls in the excerpt to be used.
The best ways to manage your site speed are right in front of you, to speed up your WordPress site you need to manage hosting, plugins, theme, and images.
One thing which impacts Acabado non-stop is the poor look of the images on the website, especially the homepage and featured post images.
Acabado has a Hero Image which works well for a desktop view but it is cropped and unusable in mobile view for most, this method allows you to replace the image
I get irritated when I link back to my old posts and I get a pingback I have to delete from within comments, this will help you disable them overall.