Hello,
1) We found in other topic that problem with product image zoom and gallery was related to Image Lazy load option of the cache plugin. So, is this questions closed?
2) I have tried to import page content from the demo at your site and did not face any issues https://gyazo.com/30dfb0777e1c4f99d16426993f022c64 Do you need a great number of pages? Did you try to import simple pages or products/shop page? Because our imported does not work for products, it works for simple demo pages like home page, about us, contacts etc . It does not work for archives (like product categories/blog categories/portfolio categories). What demo page did you try to import and stack? Provide URL.
Regards