I just checked the bundle size and it's around 70KB, not 1.3MB. I guess you summed up the images being loaded as well?
And "Faster pages", since it's an SPA. And SPAs usually have the whole website bundled into a single JS file and an optional CSS file - hence bigger than a static website rendered on the server :)
But sending 1.3MB over the wire for a super simple website :D