How can I improve the speed of this site?

Hi, r/Wordpress, I need your help optimizing the speed of a site.

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The site that I’m trying to improve is [https://cagliariconsultoria.com.br/](https://cagliariconsultoria.com.br/)

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I’m having a hard time improving the page speed of this page on mobile. I’ve not created this site and the woman that owns it doesn’t have time to recreate the whole site. The site started with a speed of 14 in light house and I’ve managed to get to 27 optimizing some images and using the free plan of Nitropack.

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My main goal is to improve the time of the first contentful paint, but ideally I would be able to get to at least yellow on mobile. Using some paid plugins is an option, but changing the host provider or recreating the site is not.

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Any insights on how can I improve the speed of this site?

 

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