SPAs are often buggy, but you can’t honestly blame React/Angular for that. I’ve built and actively maintain a number of SPAs in React. With some care JS size an

SPAs are often buggy, but you can’t honestly blame React/Angular for that. I’ve built and actively maintain a number of SPAs in React. With some care JS size and speed is very manageable even in mobile devices. The thing that consistently kills site performance is ads and trackers. Of the sites I work on, GTM, Optimizely, FullStory, and other similar crap routinely are responsible for >75% of the JS weight and >90% of the HTTP requests. It doesn’t matter how much I prune our npm dependencies and tweak React to make sure it’s rendering fast—marketing is going to make the page suck and I can’t do anything about it besides generate page speed reports that the client will ignore.