One common problem with wordpress sites is that they can seem sluggish compared to, lets say, sites built with static or single-file CMSs such as grav. There are several online tools which can help you check how fast your site is and how to optimize its performance. Two of these are pingdom and Google’s pagespeed insights.
Putting my site through these two tools yields the following results:

A more comprehensive list of online tools for testing your wordpress site speed can be found here.
Nb: The fullscreen browser images were captured using the very useful Firefox plugin Fireshot.