8 pages optimization project

We need to find a freelancer that will increase the Speed score for GTMetrix (A score guaranteed) and Google Insights (91+ score guaranteed) for desktop and mobile versions.
No bad practices, such as the PageSpeed Tricker, can be used in order to obtain a good yet "fake/misleading speed result". The perfect score must be real and acquired without manipulating Google's or GTMetrix's score.


The Optimization must be done for the site https://vault.alixans.tech/vault/passwords/access/s.weVXKr51wzNf3Wsu6Lu8qwP1/A51QZnWZAVyfcVZEPFNzCjpW?signature=68edbb8a28709f36266868dcc1247cbe654f36d437ed45dafb085d0453fa8f62 (with all current functionalities) using:
- CDN settings
- Changes in pages

Once the change on the demo server, we will need to apply them in the live website, with clear instructions about what to do.

Here are the Templates pages to optimize in 5 languages: English/Greek/French/German/Italian

- Homepage: /
- Destination pages: /destinations/ferry-to-santorini/
- Route pages: /ferry-routes/athens-to-santorini/

- Destination main page: /destinations/
- Route main page: /ferry-routes/

- Ferry companies main: /ferry-companies/
- Ferry companies pages: /ferry-companies/blue-star/

- Simple content: /ferries-ports-athens.htm

Note: the changes must not affect the functionalities of the website and booking engine, when available.

The site is written in php without any framework.