WIReportServer CPU consuming more than 90%

We are experiencing issues with the BO Server, the WIReportserver process is consuming a lot of CPU resources lately, when we check in top command, more than 90% of CPU is consuming for some pid's , I've been looking for a solution, but I haven't found it yet, Is there a configuration to avoid this behavior? or Do you know possible  causes?, because I've only found a configuration of disabling the Indexing of Universes, but had been previously set on that way on the Server.

Operating System: SUSE Linux Enterprise Server 11 (x86_64) Patch level 2

SAP Business Objects: 4.0 SP9

Application Server: WebLogic 10.3.6.0, Tomcat 6.0

Java version "1.6.0_45"

Java(TM) SE Runtime Environment (build 1.6.0_45-b06)

Java HotSpot(TM) 64-Bit Server VM (build 20.45-b01, mixed mode)

Data base Server: Oracle 11g Enterprise Edition 11.2 64bits

Thanks in advance.