Guide

1. Go to Settings dashboard, then select Media.

2. Keep your thumbnail size and set the Medium size and Large size to 0.

3. Go to bulkresizephotos.com to optimize images.

4. Click Choose images to upload your desired photo.

5. Leave your size to 100% of the original dimensions.

6. Make sure to select WebP image format.

7. Set the image quality as 80%.

8. Click Start.

9. Now you can see how the photos were condensed from 9.3 MB to 480.9 kB. This is one of the ways to optimize WordPress website.