test.txt

CASE 2: Not First Page Load

SSR: After clicking on a link to move to another page,  the browser has to make a request to the server,
which would have to do everything (async calls, creating html, putting data in it) and then returning it.

Operations = html request + async call + creating html + putting data into html

note 1: async call happens from a server, that should be super fast.
note 2: creating html + putting data into html happens on a server, so that should be super fast.


SPA:  the client doesn't need to make a request to the server for getting html file. It would only need to 
make a async request to fetch data.

Operations = async call + putting data into DOM

If async calls are pretty slim(which they are 99% of the time - passing request body as 6-7 parameters wouldn't
make any difference),  I don't actually see the difference. If one could say that async calls in SSR happens on a server,
that's why it would be faster,   I'd not agree. The reason is,  async call in SSR would be faster than async call in client
, but in SSR, we also have html request which would take time too. 

So difference is negligible, who knows which one might end up faster at all.