We are facing performance problems for opening some standard sessions.

When we checked profile, we see most of this time is at this.

113] 0.0 0.000 0.000 225.999 0.000 35 bshell waiting for UI events:tdpur4101m000 [113]

Can someone please let me know what is "bshell waiting for UI events" means ?

If I understood correctly, it should be time spent while user was just reading data on the screen instead of asking baan to do something: UI stand for User Interface.

Was there any solution for this performance issue?

you need to run a CGP profiler in order to check the problematic queries.

HOW TO INTERPRET CGP:

Summary > check run time

1. you need to analyze what happened within the run time
2. subtract the UI wait time
3. check section Query Summary
4. check the queries with high ''count fetch'' and high ''runtime total'' which are the problematic ones.