Ok I am getting mental now… Have no clue what to do or what to change… I create new blank page, literally nothing there and checking PageSpeed Insight show me that my largest content is loading in 3 sec… how if there is nothing there. When I inspect the page there is tons of code but page is blank… what to do ?
This comes back to the Optimized CSS from LiteSpeed…. the background image is added by CSS, which is being deferred to load later, hence the longer LCP time.
You may want to speak with LiteSpeed on how you can make sure that the Optimized CSS contains includes the CSS require form the page-hero element.
Looking at the LiteSpeed plugin – it only seems to provide a automated method, doesn’t look like other plugins that allow you to exclude files from optimization… i would expect they have some PHP snippets that can do that.