I will commission modifications to the prestashop plugin - at the moment it is a modified default presta category plugin, modified so that it is drop down from the top. The problem is that when analyzing the DOM it adds a few thousand items for me, since the whole list is loaded at once, I would like the default when loading the page to have only the main categories available, when clicked the plugin is supposed to pull down the subcategories and display them under the expanded category, when clicked again it collapses the categories. Basically a simple tpl modification, adding a little java and ajax. The order is for now.
Other optimization under pagespeedindex also comes into play - on mobile we have 40-55, desktop 75-80, here in terms of suggestions to get along. Hosting currently is ovh vps elite, it seems to me that with no page load it should give a better result. But this is up for discussion after doing part one. The site is wiuel.ro