WordPress website loads but is not displayed until page scrolled

I have visited your site in several browsers, including Chrome, and everything is working fine. The sole fact that you only experience the problem only in chrome, already means that this question is about the browser, not about WordPress. So, it’s off topic here.

Anyway, Chrome is known to show this kind of behaviour under certain circumstances. Add-blockers may be the culprit. Rtl-languages seem to be vulnerable. There is no real fix that I know of, but one of the solutions that might do it, is to include a little piece of javascript that scrolls the site down 1 pixel, thus triggering the rendering mechanism that was failing:

$(document).ready(function(){
    $(window).load(function() {
        $( "body" ).animate({
            scrollTop: 1
        });
    });
});

If that doesn’t work, StackOverflow is probably a better place to ask.