After logging into Ubuntu (Unity), it takes about 30s before applications (
/usr/share/applications/*) are shown in the dash. My personal files (images, music, ...) are listed immediately when entering a search term in the dash.
Why does it take so long to list these files?
then observe the difference .
go to system settings-privacy and off both "include online search results " and record activity. then observe the difference -Reposting @Sushantip606 Answer