On the QuickerWP blog there's a new post with some recommendations of plugins and techniques you can use to make your WordPress blog "fly" (increase the overall performance).

WordPress sites are notorious for their poor loading times. The platform itself comes with very few optimizations, and once you start adding plugins, things will only go south from there. [...] Most of the performance penalties actually come from having too many plugins installed, a poorly optimized site configuration, and a theme that does not optimize loading speeds (most of them don’t).

[...] It’s rare to see high marks [on Yellow Lab Tools] (a B or A result), but after applying the tweaks listed here, we’ve managed to get our own site to score an A (92/100) result, and surprisingly low loading times. Try it on your site to see how you fare.

They have a list of seven recommendations:

• Autoptimize plugin
• WP Fastest Cache plugin
• PurifyCSS
• TinyPNG plugin
• Guetzli (for image optimization)
• CSS Sprites
• QuickerWP

Each item in the list comes with a brief description of the enhancement it brings to the table and links to find out more information.