Thumbnails are much larger than the original

[borekb]

I've uploaded a 950px wide image (PNG) that was 61kB in size.
WordPress created a 690px wide "thumbnail" that was 258kB large.

This wastes my traffic and makes the site load slower for the site visitors if there are more images like this. To makes things worse, WordPress hides those thumbnails from me - I cannot see or manipulate them easily in the backend so I only realized I'm wasting resources quite a bit later.

One possible advantage is that server-side down-scaling might be better than what browser would do but first, this would need to be proven, and second, I don't think 4x as much data on storage and bandwidth and loading times justify it. 4x just feels insane.

[borekb]

Two PNGs + HTML to compare browser scaling vs. WP scaling

[borekb]

What the HTML file looks like when rendered

[joemcgill]

Hi @borekb,

Thanks for the report! I believe this may be a duplicate of #30402. If you believe that is incorrect, please feel free to reopen this ticket with more details.

Cheers,
Joe

[borekb]

Hi Joe, yes you're right. Hopefully it will be fixed, this is quite bad for bandwidth and front-end performance.