Pixelated / Distorted logo in boldial theme

Hello there!
I’m facing a issue on my logo. The image is fine, but when it’s on page it gets distorted/pixelated.

This is the website:
https://rafaelfratanutricionista.com/

A print screen showing the distorted logo, as you can see the image isn’t perfectly round and so is the text:

And this is the current set logo (as you can see it’s 2000px wide)

How can I solve this issue?

Thank you very much,
Best Regards.