Camelia Support Team – WP Estate
Thank you for your comment and I apologize for delayed reply.
We create different images based on the page where the image is needed. And we create different sizes especially so we don’t load the original image, but a resized and smaller version depending on the needs.
Theme resize rules are included in our theme – general-settings.php
We do not recommend deleting any rule as each is used for a certain purpose.
If you wish to make changes please follow WordPress resize rules to modify code.
After this you need to check old images and you must regenerate old images based on the new size rules.
For regenerate thumbs you can use this plugin: Force Regenerate Thumbnails plugin – https://wordpress.org/plugins/force-regenerate-thumbnails/
I recommend to use this plugin because allows you to delete all old images size and regenerate the thumbnails for your image attachments.
It will cycle through all your existing uploaded images and regenerate all of the new image sizes you have added.
On future if you need a faster response or more personalized support please open a ticket on http://support.wpestate.org/
All support tickets are private.
If you want advice from another client or us you can use the forum for this purpose. We try to offer help on forum in our available time, but first of all we offer direct support to our clients in the Support System.