1-3 March 2019

City, University London

Low Hanging Fruit: Identifying and Fixing Front-end Performance Issues


In order to get the most out of this session, the attendee will have to 1) have some knowledge of HTML, CSS, and JavaScript, 2) have a basic understanding of browser-based developer tools, and 3) find slow websites extremely annoying.

Session details

** Slides are available here **

We all know that your website’s performance is critical to the success of its mission. Conversion rates are proven to plummet with with every second of page load time. 

What can we do about this? To learn why the web is still slow we need to learn about:


  • What performance metrics you should be measuring and how. Which are the most important?
  • How browsers render web pages, and tips and tricks on using this knowledge.
  • What is the critical path? How can I optimize for this?
  • Identifying, profiling, and optimizing for third party scripts.


In addition to identifying low-hanging and common front-end performance issues, attendees will also be walked through common performance techniques and fixes.

Session Track
Scheduled day
Session Time
10.50 - 11.35

Keynote speakers

Rowan Merewood

Developer @ Google

Saturday AM

Preston So

Director of R&I @ Acquia

Sunday AM

Sally Young

Developer @ Lullabot

Closing Keynote

Drupal apprentices

The best people to train new developers are developers

The Drupal Apprenticeship Scheme will be running a London intake in March. If you are interested in hiring an apprentice or know someone who would benefit from the scheme please get in touch via the link below.

  • Created and run by experienced developers
  • Teaches core skills and best practice
  • Extensive support for businesses and teams

We are also really keen to hear from people who might be interested in mentoring, training and helping us to develop and review training materials to make sure they stay absolutely current and relevant.

Find out more

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