Setting and clearing dual table alphanumeric keywords requires more intensive database activity than single table alphanumeric or numeric keywords because OnBase is searching two tables for the value. One solution is to configure the keyword's Data Type as Alphanumeric Single Table.
Another option is to employ Keyword Type Groups, which allow OnBase to retrieve all the keywords for a document with a single query. When using Keyword Type Groups you cannot assign individual keywords to the Document Types. Once a Keyword Type Group is created, changes can be made to add keywords to the group, but you cannot delete them.