Website Speed Optimization -- 2

We need to find a freelancer that will increase the Speed score of Google Page Speed Insights - https://pagespeed.web.dev/ (95+ score guaranteed) for desktop and mobile version.

The Optimization must be done for the site

https://vault.alixans.tech/vault/passwords/access/s.AIAazKnVZsWsTxCbFPcSG3cK/cQmW1h3N5DdEKxkamAiO09bw?signature=89de5ad92d57036d3945ca1ca313d9910e474fc0aee4d497c71938bd9744488f

Kindly note that we want the design of the website to remain the same.

Also, this site passes the achecker https://achecks.org/checker/index.php and we do not want that to break either.