Questions tagged [response-time]

the time it takes a UI to respond to an action by the user and the effect this has on UX.

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120
votes
16answers
29k views

Is coffee a good excuse for a slow application start-up time?

I was dragged into a meeting with a client to consult on any usability issues as we watched a user performing day-to-day operations with a software application. The first thing that happened was that ...
48
votes
16answers
8k views

How long should a page take to load?

Back in 1997 Jacob Nielsen was suggesting: Currently, the minimum goal for response times should therefore be to get pages to users in no more than ten seconds Obviously expectations have sped up ...
21
votes
7answers
19k views

How long should the delay be before a tooltip pops up?

I'm working on web site in which a "ribbon" submenu pops up as soon as the mouse touches one of the main menu items. I'm trying to explain to the designer that it should wait until the cursor has ...
50
votes
6answers
4k views

Will forcing response time to the average time as a minimum improve UX?

I have a situation where my Ajax call response time could vary from 14ms to 600ms, because of the complexity of a Query they could make. From my experience Users take for granted those 20-80 ms round ...
26
votes
4answers
10k views

What is an acceptable response time for my ajax ui?

When I have to load new information from my web server via ajax after a user action, how fast should the information be displayed for the user in order to be a good working UI for the user?
38
votes
6answers
11k views

Progress bar completing too quickly

I have a progress bar that takes place after a user uploads a file while the backend is running some processes. It looks like a standard progress bar that fills as the processing completes, like so: ...
14
votes
6answers
3k views

If you can't improve loading time, is distracting the user a good technique?

On several implementations I've worked with, loading times can be as high as four seconds for the start page. When all reasonable options are done, is it possible to distract the user to make the ...
216
votes
11answers
47k views

Why do users click randomly and rapidly when an application hangs?

This question came to me when I witnessed a collegue's behaviour on an application freezing due to a large operation. And it's something I've certainly done myself. An app freezes for more than a ...
95
votes
15answers
10k views

Is Google Instant good or bad UX? [closed]

For power users, it clearly saves time in some circumstances. It also jumps around alot and does things that are very different than before. One person said it is like a guy who finishes your ...
33
votes
7answers
4k views

How patient are users at wait dialogs?

What is the length of time the average user will wait at a wait indicator (i.e. a spinning circle, beach-ball-of-death, egg-timer) before they think something has gone wrong? If anybody can point to ...
27
votes
3answers
2k views

Defining “Instantaneous” as part of usability acceptance criteria

The Setup I have run into this problem time and time again. An interface is performing slow and QA and/or Engineering come back and ask, "can you please define the acceptance criteria for how fast ...
23
votes
8answers
2k views

How can I distract / entertain people in an app while waiting?

We should do whatever we can to make our apps and websites as fast as possible, but there are some times when there is nothing that we can do to speed up some process, and so our customers just have ...
20
votes
8answers
13k views

Should a “loading” text or spinner stay a minimum time on screen?

In an app I'm building the user can click a button to load more content, which might take 1 second or up to X seconds (when X seconds passed I show a timeout error message). There is a "Loading" text (...
3
votes
1answer
1k views

Loading Times / Breaking points

We all know that a user is not going to wait forever for a website to load. Given there are certain factors and circumstances that can apply to this, is there a breakdown of users stages/breaking ...
11
votes
9answers
3k views

What to display while waiting for a process (4-5 seconds) to complete?

We realized that in some cases the user may be waiting up to 4 or 5 seconds (depending on connection) for their form (or some action) to be processed. The form involves getting data from other servers ...
3
votes
1answer
2k views

Do top, or left aligned field labels perform better at form completion?

I have designed these two forms and would like to know which would be more effective at conversion i.e form filling up. Here's the first one which I feel is more effective reason being the separate ...
10
votes
1answer
805 views

Studies showing the impact of response time variability on user experience

Have there been any studies, or results, focusing on the impact of variability in latency of response times on the overall user experience? I'm aware of the research on the "generally accepted" ...
8
votes
4answers
386 views

How can I maintain usability on a slow system?

Obviously a huge part of a positive UX is a fast, responsive design. The software I work with (Electronic Medical Records) is sometimes used on sub-standard devices (e.g. ancient desktop PCs) or in ...
171
votes
8answers
20k views

At what point does a user lose trust in a Busy Spinner?

The first scenario is an action that could take roughly 2–5 seconds to execute once the user has pressed a button. A Busy Spinner will be displayed in the button until the process has been ...
27
votes
10answers
1k views

Should aspects such as page render time or time taken to retrieve results be considered part of UX?

I was just reading this very interesting article on Fast Company about how How One Second delay Could Cost Amazon $1.6 Billion In Sales annually. To quote the article Amazon's calculated that a ...
8
votes
3answers
1k views

Assume success and show response immediately or wait for a response from the server?

All over my CMS I have buttons that toggle something on or off by sending an ajax request, updating the db, and then changes state and value of the button on success. Very basic "ajax" and "toggle". ...
28
votes
4answers
10k views

Amount of Time To Determine a User Has Stopped Typing

I have a filter form for a list. One of the fields is a text search field. When a user types in the field, I wait until the user has stopped typing for a half second (500 milliseconds), and then ...
9
votes
2answers
8k views

Activity response, startup times

I'm interested in what is a reasonable start up time or behavior for applications on smart phones. This is simply when you click an icon on the launcher (as it may be called on Android) to the moment ...
13
votes
2answers
28k views

Acceptable waiting time for users in time sensitive actions

Is there an acceptable waiting time for users when they are on banking or finance related websites after they perform an action? I expect that for important tasks users are prepared to be more patient,...
11
votes
3answers
15k views

Why do websites use “you are being redirected…” pages?

Frequently after logging in a website - specially old ones - I see the following: Welcome! You are being redirected, please click here if your browser does not redirect you. And similar pages ...
5
votes
9answers
1k views

On adding fake delay, to, network delays

Consider an app, where there's a function (perhaps a button, or, when you hit return to send some text, for example). It results in a network connection, and there will be a small delay while the ...
4
votes
2answers
337 views

Empirical measures of performance

Other than time on task, error rates, memorability and use of help; what other empirical measures of performance can one measure an interface by? Please expand your answers with real-world experience,...
3
votes
2answers
351 views

How does providing feedback influence quiz performance?

Working on the design of an online quiz tool, I'm considering what would be the best way to give feedback to the users. It's about multiple choice tests used for knowledge testing of health care ...
19
votes
5answers
718 views

Will faster GUI always make one more efficient?

Are there any studies on whether one will actually get more done during a days work if delays went down i. e. from 10 ms to 5 ms for each update. My point is that if we are already working at the ...
16
votes
3answers
2k views

Is it bad design to hide a form's success message after a short time?

I was working on a non profit site www.gettingtoknowcancer.org and one of the requirements was to have a subscribe form on the right.So I created the subscribe form like this which when clicked ...
8
votes
2answers
828 views

How to load long-time-taking content?

We have a page that takes very long to load (approx. 15 seconds, might be even more for some clients) as the data it generates is heavy and slow. While we are trying to directly speed it up, 15 is ...
4
votes
1answer
464 views

Can we quantify how much latency affects user performance?

Our company has a field office that is dealing with high latency and low bandwidth issues when working with our document management system. I've been asked by the users in that office to solve this ...
3
votes
2answers
126 views

How do you determine a reasonable minimum window of time between actions as to prevent flooding?

I'm planning some code that will prevent flooding for a project I'm working on. I'm wondering, how do you determine what interval of time is necessary to wait in between actions? I've seen this ...
2
votes
1answer
146 views

Studies on image compression level and UX?

Recently, there has been an influx of data showing that sites improving the site performance saw a lift in conversion. For example, an in-house Walmart.com study found that, for every one second of ...
7
votes
4answers
1k views

Showing the status of an action on a button

I have an application that can synchronize content between a website and a social network. with a button you can turn on and off the synchronization. the user needs to see the status (sync on or off) ...
1
vote
2answers
242 views

Lack of Agent feedback - Live Chat waiting time

What is your recommended solution for our Customer Service mobile app? We have a live chat that caters all the concerns of our customers but the problem is, we just have a limited number of agents ...