As we see from first sight you have many images on your home page (for example) which could be loaded in smaller sizes
You may test your website here ->https://gtmetrix.com/reports/lojaportuguez.com/MmhSTQkp/
and as we see 50% of your page weight are for image sizes -> https://prnt.sc/uJQLYhAOImUs
Also, we would recommend you to enable XStore Ajaxify for the widgets which are out of first viewed window size -> Example: https://prnt.sc/M4-0Z40kp-oV (your first loaded block of site) and all widgets below could be set with the option of XStore Ajaxify.
If you will find any issues you may simply switch off XStore ajaxify for the widgets which are “problematic”.
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