Ave - Blurry Image Issue
We need to make your WordPress website to regenerate the thumbs, so please follow the steps below:
1. First up, update the theme and the plugin to the latest version. If you were already have done the update, you can jump to the 2nd step.
2. We'll regenerate the thumbs to see the effect, to perform this, I recommend you a simple trick. Please change this mobile breakup point via Theme Options > Layout
https://d.pr/i/CEyMVT and save the theme options
3. Go to your homepage, hard refresh.
4. It's done! Now you can change back your mobile breakup point via Theme Options.
Your images should be clear now