Cognos 8.3 Dashboard performance issue.

[DolAny]

Hi, colleagues.

I was trying to find some useful information about how to force a dashboard feature works faster.
So, didn't find so much. I am looking for your hand.

I have got not so complicated dashboard and I don't like the time of running.
I enriched the sql(-s) as possible and to retrieve overall for one portlet it takes less then second-three.
What I don't know how to enrich:
1.   Going to some tab (new portlet) I can see Blank window with "Please wait..." and sun-clock. What's going on here and how to shrink this time?
2.   "Your report is running..." coming after and takes some time. I guess here is fetching data from data source and rendering it. Who knows how to enrich that time?
3.   After selection new prompts value (different from by default) I can see again frozen window some seconds before popup "Your report is running..." occurs. Who knows what's going on there? Is it the same as "Please wait..." with sun-clock.


Any ideas always welcome!