Hi there,
I took a look at your website, and first off, wow! What incredible photos!
Secondly, I’m not sure if what I’m looking at is blurry. Here are a few screenshots from what I can see:
https://d.pr/i/4f1Jwv
https://d.pr/i/snwD17
Do those screenshots also look blurry to you? (because they are GORGEOUS on my computer!)
If they do not look blurry, I would suggest viewing it in another browser or clearing your browser’s cache, as a local copy may have been saved (blurry) to your computer’s cache to cut down on loading times.
If it’s not that, it could also be an issue if you’re using a plugin to optimize your images, or if your featured images are too small for the theme you’re using and being expanded to fit the space. 🙂 You might check out your specific theme’s documentation to make sure your image fits the recommended pixel requirements.
Please note that I am also on a laptop with no attached monitor, so on a larger monitor, you may need to use even larger images if you have them, as the images might stretch (causing the blur) to fit the screen size.
I hope that helps!