Nobody will ever be able to help you if you don't tell what you are doing!
In any case, there are quite a few pointers in these forums already, like checking your logging, tuning your config for deployment etc.
How on earth is anyone here going to be able to tell you that?
Some more information on your problem?
What are the scenarios?
What is your app doing? Are you using web pages, sessionbeans, entity beans, JMS, MQ, JCA, JMX, clustering and anything else not on the list?
Have you performed any profiling to start to identify your bottlenecks?
sorry boys, i´m very new in this