[TimTaller]

Hi:

while testing the performance of my site using GTMetrix I got a report saying:

Serve scaled images: The following images are resized in HTML or CSS. Serving scaled images could save 418.0KiB (83% reduction).

http://static.xchaus.com/wp-content/uploads/2015/11/zhenya_and_denis_love_story_1768-600×400.jpg is resized in HTML or CSS from 600×400 to 213×142. Serving a scaled image could save 38.8KiB (87% reduction).
http://static.xchaus.com/wp-content/uploads/2015/11/zhenya_and_denis_love_story_1611-600×400.jpg is resized in HTML or CSS from 600×400 to 213×142. Serving a scaled image could save 27.6KiB (87% reduction).
http://static.xchaus.com/wp-content/uploads/2015/11/zhenya_and_denis_love_story_1816-600×400.jpg is resized in HTML or CSS from 600×400 to 213×142. Serving a scaled image could save 27.2KiB (87% reduction).
http://static.xchaus.com/wp-content/uploads/2015/11/zhenya_and_denis_love_story_2010-600×400.jpg is resized in HTML or CSS from 600×400 to 213×142. Serving a scaled image could save 26.9KiB (87% reduction).
http://static.xchaus.com/wp-content/uploads/2015/11/zhenya_and_denis_love_story_1936-600×400.jpg is resized in HTML or CSS from 600×400 to 213×142. Serving a scaled image could save 25.6KiB (87% reduction).
http://static.xchaus.com/wp-content/uploads/2015/11/zhenya_and_denis_love_story_1755-458×400.jpg is resized in HTML or CSS from 458×400 to 213×186. Serving a scaled image could save 23.8KiB (78% reduction).
http://static.xchaus.com/wp-content/uploads/2015/11/zhenya_and_denis_love_story_1855-600×400.jpg is resized in HTML or CSS from 600×400 to 213×142. Serving a scaled image could save 22.9KiB (87% reduction).

Please let me know if you can fix this in the future release.

[ahmetsali]

Hi, i see your point but in responsive websites, images are flexible and the same image can be shown as 600px in a screen and as 300px in another screen. And also 2x sized images are required for retina screens, keeping this variables in mind we have tried to set an optimal size for images.

Thank you.

[TimTaller]

Shall we expect any improvements, since WP4.4 natively supports responsive images (https://make.wordpress.org/core/2015/11/10/responsive-images-in-wordpress-4-4/)?

It’s nice to have images resized when a user changes the size of the browser window, but does it really happen often and if there is a significant user case to support this?

Instead, I’d prefer to be able to use lazy-load images (that is not possible due to the JS code of dynamic image size modifications), and it requires much more time to load the page.

[ahmetsali]

Hi again, we will consider this new wp feature and consider releasing an update about it if there is a significant performance jump. Thanks for the feedback.