- I propose introducing the possibility of making intra-Community purchases. So that the system detects such a transaction after entering it and sells the goods in VAT 0. As is the case, for example, when buying Website X5 ;) I think most online stores already offer this option

- database optimization. Unfortunately, for large stores with many phoe to display items. Some items are displayed for so long that users press the back button in the browser because they think something has frozen. This item usually takes longer than 5 seconds to display silnik z14xep

maybe just enter some partial data, so that not all the elements are downloaded at once?

possibly insert some kind of circle while loading the item, which suggests that something is being loaded?