The Performance tab reports on six different performance categories: - Performance: This score summarises your website's overall performance capability. - Server speed: This score summarises your website's server speed. - Browser speed: This score summarises your website's browser load time. - Page size: This score summarises your website's page size efficiency. - Large elements: This score summarises your website's oversized element checks. - Google performance rating: This score summarises your website's Lighthouse performance checks.