perfomance and cpu load

perfomance and cpu load

i used the ADAudit plus in my windows server 2008 R2 with 1 gb memory.
Audit starts like service one time, and after ~15 hours of work process  - java.exe used 150mb memory, process mysql-nd used nearly 100mb. What's a problem? I think it's not normally.
And after all when ADAudit service is working, my CPU usage is 99%.
Help me!

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