did you clean up all your relationships and File references?
I highly suggest reading the migration technical briefs.
*Edit - Link has been taken down... Added new links.
I did check over two of the migrattion PDFs on the web page you referenced, but there wasn't much to clean up. It's not a relational DB. A couple of scripts do call up scripts in another DB, but I made sure those references were to the converted DB.
Any other ideas?
The only difference I can see between this one and the other 3 are that (1) The default layout is a list view, and (2) There are more than 1,000 records in it.
I don't remember how to allocate more memory to Filemaker, but I'm wondering whether that would help.
1000 records are not that many. It shouldnt be that slow. There has to be something else at bay here...