Thanks for sharing your question! I have moved it into a new topic for visibility and to help you find an answer that will work.
I found a related forum thread with an accepted solution I encourage you to check out on dropdown menu spacing. Instructions will always vary by theme, so make sure to post your website URL along with the theme you are using for our partners and code experts to lend their advice.
If you are using a Shopify developed theme remember that you do have 60 minutes of free design support from our Theme team. To take advantage of this, make sure to get in touch with our Support Team and share what changes you would like done.