How fast does autocomplete need to be for a good user experience? [duplicate]

To create the illusion of direct manipulation , a user interface must be faster than 0.1 second.

1. How fast should autocomplete be?
2. What is the recommended maximum number of suggestions to present to users?
3. How can autocomplete help you find information?
4. What is the difference between autocomplete and Autosuggest?

How fast should autocomplete be?

Research has shown that the ideal delay is 0.1 seconds or less, as at this speed, the user will feel as though it is an instant response to their keystrokes. Reaction times longer than 0.2 seconds will appear to lag, and the user will perceive that there is a problem.

What is the recommended maximum number of suggestions to present to users?

Therefore, the number of autocomplete suggestions displayed to desktop users shouldn't exceed 10, while a target of 4–8 will work for most mobile users.

How can autocomplete help you find information?

Autocomplete is a feature within Google Search that makes it faster to complete searches that you start to type. Our automated systems generate predictions that help people save time by allowing them to quickly complete the search they already intended to do.

What is the difference between autocomplete and Autosuggest?

Autosuggest vs Autocomplete – What's The Difference? Autosuggest is an input field that suggests words based on what search term you have typed so far. Autocomplete is an input field (search box) that automatically completes your entry for you, based on its own internal dictionary.