Hello,
Thank you very much for choosing our theme and for contacting us.
1. Please deactivate all the plugins not related to the theme check the issue, if the problem remains, leave the plugins not activated and provide the site admin access to the private area.
2. Tab AJAX have their own design, it may differ from the shop page settings, find the options in the Design tab https://gyazo.com/fd28b57d9466043c273e786f555de251
3. This is the matter of the product image size. You would better to upload images of the same size and check.
4. It is not possible that when adding the variation images they automatically appear as the main product gallery images also. We try to improve the theme functionality. This is not possible to realize in the nearest future. In any case, we thank you for the suggestion and appreciate your recommendation.
Best Regards
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