BI Queries through JCO slow in Portal

Hello Colleagues,
we use a 7.0 Enterprise Portal on top of our 7.0 BI ABAP system.
When we open a report it initiates a JCO to the BI backend.
Backend|JCO-SID-010@servername|JCO|BICS_PROB_GET_RESULT_SET
=> we changed the caching method to Main Memory Cache with Swapping
=> We preload the queries during the night and these can been seen in rsrcache
The first time we run it have a response time of 7 seconds
The second time we run it we have a response time of 1,2 seconds.
So there is some kind of additional caching done.
Who has experience in this ?
Thank you
Hans

Hello,
this is a normal procedure.
The first time the data were read from the database and the second time from the cache.
Of course, the read from Cache is much faster.
May be, if you increase the cache the query result can be hold longer in the cache and you will get a fast result after some time too but please consider that after a system restart the cache is empty and the date have to be read from database again for the first execution.
Bets Regards,
Marco

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