I went to a conference recently where one of the talks was a guy from comcast on 'Progressive Web App performance'. The two takeaways were that they had decide

I went to a conference recently where one of the talks was a guy from comcast on 'Progressive Web App performance'. The two takeaways were that they had decided against ever using SSR (he didnt say why just acted like it was ridiculous), and that through various clever performance tricks they'd managed to get their page load time down from 30 seconds.. to 15.