Yeah, I don’t even know why people who are that clueless about frameworks are commenting; it takes less than an hour of learning of modern web development, from scratch, to shut down that notion. And other libraries to manage dates and stuff? Excuse me? How does that have anything to do with the rendering framework? Completely orthogonal choices.

And asking about basic math on download speed is golden. No idea how someone can “manage a team trained in classic web design” without that knowledge and then pretend to care about performance.