Slider-Image size – filter available?

I have the same issue. No matter what the screen size is, the only image size used is the “Large” one. I also sent a separate support issue but responding here to get follow-ups.

For anyone stumbling into this thread, do yourself a favor and switch to Smart Slider 3. It has better UI and no image quality issues.

@vaantti @torbentschechnegmailcom Gutenslider uses responsive images to always display the needed size depending on the users device. Make sure that the images you are using are large enough.

If this is the case, then why does Page Speed Insights complain about image dimensions?