Articles Featured Image

Hello,

When i add a featured image to an article in order to have it show on the news feed, not only does that image get upscaled immensly and look pixelated on the article itself, but it doesn’t show correctly on the “news” either.

How would i go around to fixing that so that it shows correctly on the news and it doesn’t show on the actual article?, and if at all possible, would i be able to select a set number of images and have every article apply a random one once it’s created?

Thank you!