An update: I ended up purchasing the Pro version, because I thought that the Smooth Page Transition would help. Sadly, it doesn’t:
? When going to the shop / product page, the loader appears, loads up to 60%, then the page flashes for a moment and then the loader keeps loading.
? On mobile, when going to the shop / product page, the loader appears properly placed, loads up to 60%, then the page flashes for a moment and the loader reappears wrongly positioned.
I am convinced that for some reason, the Woocommerce assets load first, delaying the loader itself. It doesn’t seem to be a caching issue and I cannot find a way around it.
I repeat that the above are issues for both the Lite and Pro versions of the plugin.