How to Make Your App Load Faster (or Feel Like It Is)
Sep 23, · Prerender your app to improve perceived loading performance. Make use of aggressive code splitting to reduce the amount of code needed for interactivity. Stay tuned for part 2 where we discuss how to optimize runtime performance on hyper-constrained devices. 1) Choose an application that you want to start up quicker. 2) Create a shortcut and place it on the desktop. 3) Right click the shortcut item and click properties. 4) In the target field you will have it pointing to the location of the application.
Feature phones are constrained in multiple ways:. But they run a modern browser and are very affordable. For this reason, feature phones are making a resurgence in emerging markets. Their price point allows a whole new audience, who previously couldn't afford it, to come online and make what qualifications do you need to be a ultrasound technician of the modern web.
For it is projected that around million feature phones will be sold in India aloneso users on feature phones might become a significant portion of your audience. In addition to that, connection speeds what is blackberry device password to 2G are the norm in emerging markets. Performance is important, and that includes both loading performance and runtime performance.
It has been shown that good performance correlates with increased user retention, improved conversions and—most importantly—increased inclusivity.
Jeremy Wagner has much more data and insight on why performance matters. This is part what are cycling shorts made of of a two-part series. Part 1 focuses on loading performanceand part 2 will focus on runtime performance. Testing your loading performance on a real device is critical. WPT runs a battery of loading tests on a real device with an emulated 3G connection.
While you might be used to 4G, LTE or how to completely wipe out android phone even 5G, the reality of mobile internet looks quite different.
Maybe you're on a train, at a conference, at a concert, or on a flight. What you'll be experiencing there is most likely closer to 3G, and how to make apps load faster even worse. That being said, we're going to focus on 2G in this article because PROXX is explicitly targeting feature phones and emerging markets in its target audience.
Once WebPageTest has run its test, you get a waterfall similar to what you see in DevTools as well as a filmstrip at the top. The film strip shows what your user sees while your app is loading. When loaded over 3G, the user sees 4 seconds of white nothingness. Over 2G the user sees absolutely nothing for over 8 seconds.
While this state qualifies as a First Meaningful Paint FMPit surely does not qualify as properly interactiveas the user can't tell what any of the inputs are about. It takes another second on 3G and 3 seconds on 2G until the app is ready to go. All in all, the app takes 6 seconds on 3G and 11 seconds on 2G to become interactive. Now that we know what the user sees, we need to figure out the why. For this we can look at the waterfall and analyze why resources are loading too late.
Each thin line dnsconnectssl stands for the creation of a new HTTP connection. Setting up a new connection is costly as it takes around 1s on 3G and roughly 2. In our waterfall we see a new connection for:. The new connection for index. The browser has to create a connection to our server to get the contents.
The new connection for Google Analytics could be avoided by inlining something like Minimal Analyticsbut Google Analytics is not blocking our app from rendering or becoming interactive, so we don't really care about how fast it loads. Ideally, Google Analytics should be loaded in idle time, when everything else has already loaded. That way it won't take up bandwidth or processing power during the initial load.
The new connection for the web app manifest is prescribed by the fetch specas the manifest has to be loaded over a non-credentialed connection. Again, the web app manifest doesn't block our app from rendering or becoming interactive, so we don't need to care that much.
The two fonts and their styles, however, are a problem as they block rendering and also interactivity. If we look at the CSS that is delivered by fonts. The font styles are so small in fact, that we decided to inline it into our HTML, removing one unnecessary connection. To avoid the cost of the connection setup for the font fileswe can copy them to our own server.
The important thing to realize here is that these kinds of dependencies are known at build time. Let's take a look at what our changes have achieved.
It's important to not change any other variables in our test setup that could skew the results, so we will be using WebPageTest's simple setup for the rest of this article and look at the filmstrip:. These changes reduced our TTI from 11 to 8. Well done us. While we just reduced our TTIwe haven't really affected the eternally long white screen the user has to endure for 8.
Arguably the biggest improvements for FMP can be achieved by sending styled markup in your index. Common techniques to achieve this are prerendering and server-side rendering, which are closely related and are explained in Rendering on the Web. Server-side rendering does this per request on the, well, server side, while prerendering does this at build time and stores the output as your new index.
If anything, our index. There's only one way to find out: running WebPageTest. Our First Meaningful Paint has moved how to make apps load faster 8. Our TTI still happens at around 8. What we did here is a perceptual change. Some might even call it a sleight of hand.
By rendering an intermediate visual of the game, we are changing the perceived loading performance for the better. This is the time it takes from the first byte of the request being sent to the first byte of the response being received. This time is also often called a Round Trip Time RTTalthough technically there is a difference between these two numbers: RTT does not include the processing time of the request on the server side. Looking at our waterfall, we can see that the all of requests spend the majority of their time waiting for the first byte of the response to arrive.
This task has varying difficulty, based on the bundler that you're using. Note: In this step we also subset our font files to contain only the glyphs that we need for our landing page. I am not going to go into detail on this step as it is not easily abstracted and sometimes not even practical.
We still load the full font files lazily, but they are not needed for the initial render. This shaved 1 second off our TTI. We have now reached the point where our index. The moment the HTML is done parsing and executing, the app is interactive. Yes, our index. But on closer inspection it turns out it also contains what is a p3t file else. Our index. Let's put that in relation to what the user can interact with at the start: We have a form to configure the game containing a couple of components, a start button and probably some code to persist and load user settings.
That's pretty much it. To understand where our bundle size is coming from we can use a source map explorer or a similar tool to break down what the bundle consists of.
As predicted, our bundle contains the game logic, the rendering engine, the win screen, the lose screen and a bunch of utilities. Only a small subset of these modules are needed for the landing page. Moving everything that is not strictly required for interactivity into a lazily-loaded module will decrease TTI significantly.
What we need to do is code split. Code splitting breaks apart your monolithic bundle into smaller parts that can be lazy-loaded on-demand. Popular bundlers like WebpackRollup how to block a person on yahoo messenger, and Parcel support code splitting by using dynamic import. The bundler will analyze your code and inline all modules that are imported statically.
Everything that you import dynamically will be put into its own file and will only be fetched from htc one m7 how to update network once the import call gets executed.
How to Make Your App Load Faster (or Feel Like It Is)
Aug 25, · Does anyone have a tip to make those apps load faster? PM. Like 0. 1, Bobvfr. Just clicked on the calculator app on my desktop and it opened instantly, this was on an AMD 8 so a slower processor than your i5 so I went through and did the same on my wife's i5 Surface Pro 3 with 4g and it opened instantly and again on a i5.
The success of an app lies in the details. And what really will make the difference is the loading times as your users hate waiting! Even with the best technology, there are loading times inherent to your application! You may not have noticed it but your dear social networks regularly deceive you with little tricks.
The download of your app is very fast because only the shell is installed. It is at the first opening that its data is downloaded entirely from our server on the device of your user. No more connection: all your content is accessible offline! The download time is proportional to the overall weight of the application.
A loading bar tells your users how to proceed. For the user experience to be fluid and native, the screens load as they go. This is what makes white flashes appear when you switch from screens to screens. To create transition effects fading,.. Or use the foreground that works like the states and that allows to cover a change of screen.
All the states of a screen are loaded at the same time. Be careful, therefore, of the contents of your reports because too heavy states may cause loading latencies. If you notice this problem with previewing, place your content rather on different screens or use the Gallery component. Instagram, for example, prompts the user to choose a title and a tag while the image is loading in the background.
By the time he chooses these elements, bam! Facebook displays gray lines to reassure us on the loading of our page and create a smooth transition with our content. This is a good way to bring up a list of articles, results …. Little fun effects will occupy the mind of your users. Play with your menu to hide the background or simply add small animations that will invest a few precious seconds.
Do not forget: your users are in a hurry! Take time to test your app, identify load times and discover tiny tricks in your favorite apps!
Loading times. Some UI Tips. Give your users other tasks to focus on Instagram, for example, prompts the user to choose a title and a tag while the image is loading in the background. Loading an Instagram image. Display temporary content Facebook displays gray lines to reassure us on the loading of our page and create a smooth transition with our content.
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