SEO impact on specifying image width and height for responsive website?

Question

I was told that specifying inline width and height for all images will be good for SEO and also helps the site loads faster, like so:

Answer 1

I was told that specifying inline width and height for all images will be good for SEO and also helps the site loads faster.

No, it does help loading the site faster. It helps avoid flickering when rendering the page. If you want to load your images faster, make sure they have the same size as specified in the page and use a service like kraken.io to reduce the corresponding file size.

About SEO, it's improper image size and width for the screen size that can hurt your SEO. Google may consider you site as not user-friendly and/or not smartphone friendly.