ServiceDesk Java High CPU utilization

ServiceDesk Java High CPU utilization

When DB is MS SQL - Java.exe utilize about 70-100% of CPU. Switch back to MySQL turns a normal CPU utilization - 1-5%.
It is a feature by default? I tried it on different OS (WinXP, W2k3 Standard, Enterprise) and is always the same.
I want to use MS SQL but I don't like such a high CPU usage.

                  New to ADSelfService Plus?