How to increase page loading speed?

Question

css

I'm doing a download speed test.
Test for desktops:

and now for mobiles:

I expected that the results would be approximately the same (+/- 5 units), but there is a huge difference ..
What's the catch?

Google advises to figure out js, but I already have a compressed and small script

of course, jquery is also connected, but is it really because of it that it loads like that?

Script Evaluation

what is meant by this I can not understand ... tell me
at least something
PS images are all compressed to a minimum. css is also compressed, js is also compressed.

Answer 1

Hello! Accidentally stumbled upon a question, and remembered that I saved an article about it just yesterday. I think here you will learn something
https://tproger.ru/translations/how-to-boost-frontend/

Answer 2

I expected that the results would be approximately the same (+/- 5 units), but there is a huge difference ..

yeah ..
this has never happened - neither on the old version of the service, nor on the current one ...
sometimes there is a bigger difference, 50 points or more.
in fact - you have to play tricks on the little things there, lazy load pictures, rearrange some of the scripts in the op and the styles there too.
it is natural that everything should be done not by googling, but adequately, for example, the same lazi-load - only by scrolling the page, plus if the page is scrolled to half-screen, the rest of the widely used lazi methods for google-pagespeed are useless0))
4 remotely loadable fonts for village level landing ? OoOOOoo ...
well, plus banality: