[WP Smush Pro] Image Size Mobile

Hi, I have four issues with my mobile site
1. Images (featured) do not show up on/blog page. Will I a have to install another plugin or can SMUSH change these so they resize
2. The menu colour is different on mobile than desktop and when it shows up in the tests gt metrix etc it is a different colour than the actual site
3. Menu does not show up on mobile - it used too
4. Google fonts are gone