Image Optimizing

Hi Candice, This is how wordpress works.

EPL creates 2 images a 100×100 pixel for the admin page and a 300×200 fixed crop thumbnail for use in the theme. Then you have the full image along with wordpress’s Thumbnail, medium and large sizes which is pretty standard for most sites to improve loading speed and site performance.

The alternative of two/three only would be a bandwidth killer as your users would be served larger images instead of smaller optimised images to their device. Image quantity is not that much of an issue even with 100,000 images, space is the real issue. You need to balance bandwidth and space.

You can disable the WordPress thumbnail, medium and full sizes with a simple filter found here. So no need for a full addon to remove three images, however this will as stated above increase your bandwidth usage as your small images will really be large images sent to the browser, slowing site speed.
http://www.studiograsshopper.ch/code-snippets/remove-wordpress-defaultmedia-image-sizes/

You can also disable the easy property listings images with a remove action

remove_action( 'after_setup_theme', 'epl_image_sizes' );

WordPress is fine for any scale. They have vip hosting for enterprise which also serve billions of pages per month.

https://vip.wordpress.com/

The only issue is the hosting platform and network that the site runs on. Using Joomla or any other CMS will have the same issues as it is all down to hardware capacity and network bandwidth Candice. Then you need to factor in your time to learn a new CMS…

https://codex.wordpress.org/High_Traffic_Tips_For_WordPress

We have several sites with 10,000+ listings on dedicated servers which run very well as they are on beefy servers. You will have no issues long term, except cost. I really believe you can build anything with WordPress on the right server. You can also upgrade as the site goes which hopefully you have a good revenue stream to help with server growth as the site grows.

So no, I would stick with what you know and use and worry about server performance as you grow the site. You can use a CDN to handle images and reduce the main server load along with correctly configured cache plugins.

We’ve optimised Easy Property Listings to work how WordPress works and that is why it is fast. Additional improvements will be made as it grows too and as users make feature requests which help us make it better.

Hope this answers your question