We are so used to JavaScript SPAs taking a long time to load. People will Webpack it then use a tool to inline CSS and sort scripts. I find it easier and faster to use no loader at all, and manually sort scripts. The build process is less likely to break, because there is none, and it builds instantly, because there is none, it loads directly from the filesystem. Most modern browsers (even with IE11 included) support enough ES6 features that you can write your code directly in the common supported subset.[0] I had a multiplayer game with hundreds of hours of gameplay get on the front page with "loads in less than one second" in the HN headline. (http://vnav.io)

[0]: https://wwwperiodictable.surge.sh