How to Use the Image Resize feature
The Image Resize feature can be found by accessing the Theme Options item from the Thrive Dashboard:
In the Theme Options section, look for the "Performance" option and click on it:
Next to the "Image Resize" text is a green question mark icon. Hover over it to find more details about this feature:
After you have selected the process you want to run your image through, click on the highlighted green button to start it (1). Once you did this, you will notice below the image resize options, all the images on your website that are being optimized. (2). To stop the process, click on the red indicated icon (3):
Also note that, in order to properly optimize all of your images on your website, you have to leave the page open until it says that the image resize process has finished.
Once the process is finished, you will receive a success message that says that your images are optimized for the current theme.