I have WordPress multisite that has legacy unsupported theme, I want to change that without losing functionality. Our site mostly built using wp bakery and theme is probably used for only header and footer. We have very simple wordpress site, please don't apply if you can't do in my budget and only apply who has solid experience with wordpress. I also wish to replace/update prettyphoto and multilingualpress plugin. And make sure web vitals pass. Note: please don't apply if you don't have good knowledge of wordpress. I prefer to work with European, american, middle east and vietnamese freelancers.