Every theme developer claims to have one of the fastest WordPress themes, so I stopped reading sales pages and tested them myself. I built identical websites with 8 popular themes and measured Core Web Vitals, page load times and how each one affects ranking potential.
Some results surprised me. A couple of well-known themes add weight you won’t notice until you check the numbers.
Below you’ll find the full performance table, a feature comparison, honest pros and cons, and my pick for different kinds of sites. If speed is your priority, this will save you a lot of trial and error.




