See the following link & follow all the off-shoot links to find hints & extra skills to help solve your "slow" problem: To continue files downlding (click on link)

More categories would be good. But remember that not everybody adds ID3 tags properly to their shared files. So even though you may search a particular category, you may miss out on some results b/c the category id3 option has not been selected or has been incorrectly set (many people make this type of error when setting id3 tag info.)