As a leaf you should not be connected to more then 5 Ultrapeers.

If you force yourself to be ultrapeer you should have at least 20 ultrapeer and 10 leaf connections. Better is 30 or more ultrapeer and leaf connections.

Quality of search results depend on the popularity of the search term in your area and also if you sit in a cloud of spam... it helps if you block IPs from hosts spamming you.

This might also help, though it has a bigger impact on downloads.
http://www.phex.org/wiki/index.php/P...imization_Tips

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