Spotlight-like search-as-you-type method used by TranslateIt! is a great thing that saves you from hitting Enter every time you want to start another search. But sometimes it can work slow (especially if you have a lot of dictionaries installed, or your computer has run out of free memory), thus being quite annoying and decreasing you productivity.
That's why TranslateIt! allows users to fine-tune its search-as-you-type behavior.
The chosen number means the delay before activation of the search-as-you-type process. The less is this number, the sooner TranslateIt! starts searching. The recommended delay is 0.4 s.
If you want to get back to the good old type-and-hit-Enter-to-search method, choose "- - off" in the "Search-as-you-type-delay" drop-down menu.