If you read the help files on seach/reveal/flush, you see that you can
specify an effort along with the command.
There seems to be some confusion about how these levels work. The
higher levels is just a shortcut for multiple "quick" commands. E.g:
search fast = search quick; search quick
search t = search q; search q; search q; search q; search q
So a search t really does 5 quick searches, you are not doing nothing
for ages and then at the end doing a single search.