Really very slow loading

[ettorericciParticipant]

Good morning,
We have been having major loading problems for some time now.
The site is very slow in the first loading.
The purchase code is 27b9d1ee-5eac-40e5-910c-fc3cab241924 and we have no active support. I wanted to know what kind of configuration do you recommend: php and wordpress version.
And if the theme has been updated and if we can have this update. The site is http://www.torrefazionesalento.com

Really slow, we are considering to change theme
Thanks

[Author]

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