High CPU

Hi,

I have made some searches on this but not found anything relating to my problem. I have very high cpu utilisation. First of all, I have several "cscript" running in task manager that are consuming a lot of cpu(are these connected to opmanager?).
The machine is running in i virtual ESX environment and has 2,4 G CPU, 3 gig RAM and fast disk-access to SAN. The CPU is running at 100% more or less all the time you work with the interface.
Further more i have about 40 routers with 3-4 interfaces monitored, 50 switches with 1-2 interfaces monitored, 100 servers with 1-7 services monitored and a bunch of business views.

Is there any way to schedule the snmp collectors to even the usage out?
Is this normal?

regards
Bj�rn