Site speed slow on mobile

[webdev (Jeff Selser)]

Similar question. I address next gen image formats recommended by Google Page insights.

Google Pagespeed: recommendation WebP, JPEG XR and JPEG2000

I made a check of our website with Google Pagespeed. Google give the recommendation to use one of this image formats: WebP, JPEG XR and JPEG2000. Pagespeed Link: https://developers.google.com/speed/pagespeed/insights/?url=https%3A%2F%2Fm.zukunftsblick.ch%2F Do you support this? And is this meaningful? Greetings Bettina Lucas Here is my site Read-Only: LINK (how to share your site Read-Only link)