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Thanks for your good question.
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I will check out the issue and provide you a solution here.
@Amiroff61 - please check this link - https://cdn.shopify.com/s/files/1/0601/9586/4756/files/PicsArt_01-20-08.39.19_205x.png?v=1642704096
it is your logo which has a lot of non-required space above and below of actual logo, remove that space and header will automatically be smaller