VC 7.0 - Performance during query execution

Hi Experts,

we have built an VC cockpit wich includes ~35 Querys.

When the user opens the cockpit the VC modell starts all 35 querys.

When we start the querys in the SAP BI System (RSRT) they all need less than 1 sek each.

Our BI system is able to handel 40 querys simultaneous.

Our problem is that the cockpit need ~40 sec. until all querys have been finished.

We suppose, that the VC starts all querys seriell instead of parallel.

Is there any configuration where i can switch between parallel and serial mode?

Thanks for your help

Regards

Florian