What theme are you using? The theme is most likely making a default size for the featured images.
I am using fashionista version 4.31. I think the new version is cutting my featured images in half. How do I get them to be the full size like they were before this update? Your help is appreciated!!!
I recommend asking at https://wordpress.org/support/theme/fashionistas#postform so the plugin’s developers and support community can help you with this.
Hey Vandyusvi,
You uploaded featured images for blog post different size’s, I mean there is lot of difference in images size first blog post image size 1250×923 and second blog post image size 338×1024 so it has lot of difference so,you have to take care about this when you uploading the images for post.
And one more thing you have to compress the images before uploading on site https://tinypng.com/ use this link for compress images this will increase your site page speed.
Check your page speed https://developers.google.com/speed/pagespeed/insights/
its very low you have to optimize all images and code of your site.
Regards
Anil