Solution : https://service.sap.com/sap/support/notes/1549428 (SAP Service marketplace login required)
Key words : 
prerequisites low performance solution apply, run t-code se91, terms process control, related support package, attached correction instructions, message class grfn_clm, processing mdug, clm reason, manual activities, change button
Related Notes : 
       
| 1549787 | Process Control 10.0 Support Package 03 - Master Note |