When you make a search using the Unity Dash online results are also displayed. If you want to make the Unity Dash faster, it is recommended that you turn off these online search results.
You can turn off this feature via the System Settings
. Go to Personal > Security & Privacy
Go to Search > When searching in the Dash
and toggle Include online search results
This document, titled « Ubuntu - How to Disable Online Search Results from the Unity Dash », is available under the Creative Commons
license. Any copy, reuse, or modification of the content should be sufficiently credited to CCM