Increase website speed - Core Web Vitals

Hello,

We are looking for someone to increase the performance of our website.

We did a pagespeed test with the following values:

First Contentful Paint
3.2 s
Time to Interactive
12.6 s
Speed Index
4.5 s
Total Blocking Time
820 ms
Largest Contentful Paint
7.2 s
Cumulative Layout Shift
0

Resulting a 39 score.

We'd like to increase this to past 50. Please apply if you have previous experience, Thank you :).

Regards,

Jake