I have a website made with Wix.com. The Google page speed insight score is 20 for mobile and 60 for desktop. I have made all the changes to all the pages with respect to image optimisation, image resizing, converting to low HD jpeg, cleaning up the home page and removing third party i frames. My score does not go up. I want to bump it up to at least 40 for mobile and 80 for desktop but according to the speed tests, it requires certain type of coding to improve LCP and TTI.