Solution : https://service.sap.com/sap/support/notes/51373 (SAP Service marketplace login required)
Key words :
including starting rfc servers, max hold time exceeded, poor response times, work process remains, hold/sapgui status, user master record, needless generations occur, diag_rfc_exception short dump, displaying 'progress indicators', max_hold_time exceeded
Related Notes :
| 556875 | VL10: Change of mode from active too inactive |
| 48034 | Progress Indicator - influence on performance |