How performance affects UX of the webpage and what we can do to improve it?

Practical UX
Practical UX
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How long will users stay on a web page before leaving? Study after study confirm: Not very long. First ten seconds on the web page are critical for users to decide should they stay on the web page or leave completely.

This happens because performance IS user experience. Take mobile websites: 85% users of the mobile website expect it will load more quickly than on desktop. This, combined with the fact that more than 60% web page views are coming from mobile, leads to the conclusion: mobile webpage performance optimization should be taken into consideration from the beginning.

The average mobile website page weight is ~50% images. Toss in the complication of thousands of differently sized screens, and it might appear that efficient delivery of images to every device is an impossible task. But all is not lost! In this talk, we’ll examine strategies to send the perfect image to every device, ensuring a fast, beautiful rendering of your content. We’ll look at progressive images, placeholder images, lazy loading and other techniques and real world examples that will improve the usability of your site or app. Attendees will come away with an understand of the current ‘state of the art’ for optimizing visual content on the web.

Doug Sillars is is a freelance mobile performance expert, having helped thousands of developers speed up their mobile apps and websites. A Google Developer Expert and the author of O’Reilly’s “High Performance Android Apps,” Doug regularly speaks at conferences, and blogs at He is currently working as a freelance digital nomad, traveling with his family in Europe.

This event is for UX designers, web developers and anyone else who wants to find out about latest web performance optimization tips and techniques, and apply them to their projects. It will be held in English.

Milovan Jovičić will moderate the session and discussion afterwards.

RSVP is mandatory as seating is limited. There will be no live streaming.

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