Solution : https://service.sap.com/sap/support/notes/17617 (SAP Service marketplace login required)
Summary :
Key words :
search field directly afterthe client field, symptom long response times, client dependent tables, main search field, end user specifies, function db utility, additional key words, matchcode id consists, -transparent matchcode id, transparent matchcode id
Related Notes :
27122 | Converting customer matchcode IDs to transparent IDs |