Hi there!

Thanks for reaching out to us.

This is happening because of the menu column then cannot fit in the defined space. There is a huge padding among menu items.

https://prnt.sc/jxxyzVLwYg7_

You can simply lower the padding value as per your need to get a better view even when you need to add more menu items there.

Here is sample code that you need to put in the custom CSS:

#sp-header.header-with-modal-menu .menu li:not(:last-child) {
    padding-right: 20px;
}

Here is all about custom code placement in Helix Ultimate framework: https://www.joomshaper.com/documentation/helix-framework/custom-code-css-js-meta

Best Regards