What your image doesn't show is the sources vendor. The slowest downlds tend to come from Shareaza (RAZA) b/c raza works on more than one network & often only offers a pittance for uplding for the gnutella network. You can right-click the top of the column to show vendor/version of source.

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