Load retina image on your site with the correct resolution and size for the device.
When it comes to loading images we all want to display the best quality we can on our website. But doesn’t mean loading the biggest image you have expecting one image does all. Downloading huge image when only a smaller image is required would only slow down your site and user experience. Also downloading an image that is too small to then use at a larger size would pixelate and look poor quality.