Nowadays, we come across many websites where the pages are too slow. They take a while to load simple content like thumbnails, texts, and pictures. Most of the time, these pages are slow not because of your internet speed, but because of the technology the websites use for serving content
That’s not necessarily special to JS. It’s special to client-side code. A mobile app writing in swift could do this. A cli tool written in any language could do this.
This isn’t an argument against JS, it’s an argument against misuse of client resources.
edited my comment to include the excruciatingly obvious assumption.