How big should the image sizes be?
I've been working on a site and I wanted to check how fast is my site loading with DevTool's Network option and it got nearly 40 seconds, so I've done some optimizations and it takes like 4 seconds for fast 3G now, which is still slow I guess, so I would like to ask how much KB is convenient for an image? The image in the photo is 134 KB. Is it too much or should I look for other options to speed up my site? Image's original size is 491x600.
