Thanks Ludek for your suggestions.
Installing the CR 13 SP11 run-time has improved the performance by 4 secs from 12 secs to 8 secs now.
However on further analysis for for crystal 13 SP11 we identified that the SetDBLogonForReport function takes 5 secs for the report which has 8 tables associated . However on crystal 11 & Crsytal 13 SP11 installation it takes 1 sec for the same function.
Also as i said earlier these reports have been existing for years and created by clients so cannot be changed to a single table.
We have modified the report driver to SQL native client as well which didn't show any improvement.
Can you help me if there are any connectioninfo changes implemented between crystal 11 and 13 to further investigate or change code from our end.
Any valuable suggestions on that would be helpful.
Thanks in advance.
Regards,
Satish V S