i can see that – first thing to do is to disable the webp / optimization on the logo.
Not sure what you app you’re using for that, but generally you can exclude images from them by using a CSS Class you can use: is-logo-image .
The site is using Shortpixel which is optimizing and converting the image as well as lazy loading.
Somewhere in its settings there should be an option to exclude the image from its optimization. Try excluding the logo image.
If the exclusion requires you to add a CSS Class to identify the logo then you would use is-logo-image