lorax - 2:13 pm on Feb 1, 2013 (gmt 0)
RE: Database export/import. Have you tried using PHPMyAdmin to do the export? You can probably leave the default settings and just export the database to a file and you'd be good to go.
RE: Speed Issues. Have you optimized the db? Have you looked into how many calls your WP installation makes to the db when loading a page?