It seems like everyday we hear of a new framework that is "blazing fast" in something, but yet is written in Javascript or PHP or other dynamic language. It almost is like a meme or an insider joke that I don't get. Maybe it's "blazing fast" as compared to slow-as-molasses Javascript code, but it still is not as fast as it could be because it is written in Javascript.
e.g:
Lumen: "...solution for building Laravel based micro-services and blazing fast APIs"
Stencil: "Generate small, blazing fast, and 100% standards based Web Components..."
Gatsby: "...a free and open source framework based on React that helps developers build blazing fast websites and apps"
Vue: "...Blazing Fast Virtual DOM"
Lisan: "A blazing fast and super small i18n library..."
If you want a faster application your best bet is to avoid doing slow things as opposed to the magic of any application framework.
On the backend limit service calls, database queries, and asset size as much as possible. Essentially do less and send less to the browser.
On the front end avoid everything that requires parsing a string: querySelectors. That alone can make your application up to 10000x faster.
The slowest parts of any web application are the network connection and large frameworks (both frontend and backend).