Hello, Isabel Lima,
Please refer to the following link for instructions on how to speed up your website: https://xstore.helpscoutdocs.com/article/100-how-to-speed-up-my-website/ We would recommend you install and use the cache plugin and CDN, disable unrequired plugins, optimize images (for example https://prnt.sc/42w5G9ytBdGh , and use .jpg format for images https://wordpress.com/go/web-design/are-png-or-jpg-images-better-for-site-speed/ ).
https://prnt.sc/uUOEe7pj1YE3 – https://kinsta.com/blog/make-fewer-http-requests/ https://wpastra.com/add-expires-headers/ https://authoritywebsiteincome.com/4-ways-to-use-cookie-free-domains/
Kind Regards,
8theme team