In short, yes.
Google first confirmed that site speed is a ranking factor over a decade ago, in 2010. Then, years later in 2018, Google rolled out the “Speed Update” to mobile search results.
By 2021, Google had expanded its site speed and user experience ranking factors to include what it calls “Core Web Vitals” — a set of metrics that signal good user experience to the search engine.
In 2024, all sites indexed by Google are reviewed mobile-first — and site speed remains an aspect of the search engine’s ranking algorithm.