Hi,
Please use the following code to your custom CSS:
#sp-header {
height: 100px!important;
display: flex!important;
align-items: center !important;
}
This will let you get a bigger header!
Note: Path towards custom CSS:
Extensions>Templates>Styles>
Click on your current default template name then choose Template Options.
Then find custom CSS within the custom code.
https://prnt.sc/pu705g
https://prnt.sc/pu70zn
Best Regards