Performance issues opening forms and switching resp

Dear All,

Recently migrated Oracle Applications 11.5.10.2 and Database 11.2.0.3 from Linux to AIX, where I get performance issue while switching the responsibility and opening forms.

Elapsed times include waiting on following events:

  Event waited on                             Times   Max. Wait  Total Waited

  ----------------------------------------   Waited  ----------  ------------

  SQL*Net message to client                    1126        0.00          0.00

  SQL*Net message from client                  1126      463.14        543.31

  library cache lock                             19        0.01          0.02

  db file sequential read                         8        0.01          0.05

  library cache pin                              12        0.00          0.00

  KJC: Wait for msg sends to complete             6        0.00          0.00

  gc current block 2-way                          2        0.00          0.00

  gc cr grant 2-way                               4        0.00          0.00

  log file sync                                   2        0.00          0.00

  SQL*Net more data to client                   122        0.00          0.00

  Disk file operations I/O                        2        0.00          0.00

  latch free                                      4        0.00          0.01

  SQL*Net more data from client                   2        0.00          0.00