When adding an image as a glideshow, it looks fine in edit mode, but the quality is poor when previewing the page or opening the published link. Sometimes it'll improve, but it takes quite a while for everything to buffer.
Thank you for getting in touch, and I'm sorry about any frustration you've experienced. Our engineering team has recently addressed a number of reported bugs. Can you please confirm whether this issue persists?
If the problem persists, don't hesitate to let me know.