avoiding jutter is extremelyimportant to users. you just saw what a difference itmade in jenk invaders just now. but, it's not just games. it can affect all sites and web apps. >> let's put that in the contextof native apps a second.
Android TV judder, think about what you do when you'rechoosing between two native apps that do the same kinds of things. how do you decide between two? >> well, i'll look at reviews andsee what people say about the app's
features and, you know,i'm also interested in performance. >> right. a quick look around poorly ratedapps tells you that users notice and they care when an app judders orstops for, like, one to two secondswhenever i click on this thing. when that happens they, and you, wouldchoose an app that performs better and it's no different with the web. bad performance kills good sites. equally, users love experiences that aresmooth, that stick to their finger and
react quickly. another colleague of mine paul kinlanran a survey about the features that people want from a news app. and the most requested featurewas smooth navigation. smooth, as in, no jank. in fact, 77% of people wanted it. >> this course will explain how you canthink about your project's performance and what tools you have at yourdisposal, and what you're looking for and how to fix common issues.
you're going to hunt down causes ofsticky scrolling, flickering updates, and juttering animations. but first, you'll start your 60 framesper second journey by exploring what goes into a single frame.
