On Opera mini, the problem isn't with the opera mini engine, when a site is broken not as expected, you should debug it yourself, especially if it's your site. 2nd, extreme data saving isn't intented to make a website beautiful, it will fuck up some site, and seems you use a lot of 3rd party CSS library that's not supported by opera mini. Ask people to use high data saving mode so it will shown fine on the device. Just it. It's been a long time public secret that and heavy 3rd party CSS library will broken on opera mini, and if you want to your site work on extreme data mode, then check the browser agent, if it's opera mini, use a working css and JS that's justified to work with compression on opera mini. just it.

You mean on the start page? I turned off news on start page, if you go to the actual news page you can select which sites are shown.

Be clear and concise when describing the problem. Be specific and remember to include important details, such as the exact error message or address of the site you're having trouble with. Don’t write in all caps; and leave swearing, rudeness and flaming at the door. https://forums.opera.com/rules