Low resolution logo on mobile

Hello there,
I’ve just published a client’s website and noticed that the main logos (navbar and footer) look pixeled and in low resolution on mobile although the logo has been uploaded .SVG

You can check the issue at alconn.it

How can I fix that?

Thanks in advance.

Here is my site Read-Only: LINK
(how to share your site Read-Only link)

Are you seeing this in Chrome?
There are some known techniques to overcome a Chrome-specific bug regarding SVGs.