Another option we are introducing for the Search tool is one that lets you decide, upon a Search folder, whether a given file is supposed to be searched for depending on its size. That is, depending on whether the file is more than X mega-bytes and/or less than Y mega-bytes in size, it is included in the search process.
For instance, this option ensures extremely large files are not searched for. Or a large number of very small files where you know in advance it is no use doing a search in them.