FreeRapid CPU Usage

Hello all,
I've been using FreeRapid for quite some time, and the last few days I noticed that the CPU usage is pretty high (~50% in a very consistent way, see screenshot).
The download list have 450+ links, about 4 of them active at a time (different host services).
I'm using latest version, 0.85u1 plugins fully updated.
Java version is JRE7, build b147 (latest).
Anything special I should check or is it common for Java applications under such circumstances?
Screenshot
Thanks, Adam.

It's normal. Your huge download list is periodically updated and stored. Use less links (max 100).

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Edited 1 time(s). Last edit at 07/01/2011 04:29PM by Vity.

Oh, OK.
Thanks for the super quick reply and your efforts

I thought there were some backwards compatibility issues with XMLEncoder in Java 7. Does everything work fine?

It's not the problem.

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Well, after following Vity's advice, I trimmed my list and indeed CPU usage is much better.
Still seeing the spikes pattern with CPU usage, but the highs are at ~10-15%, which is fine, although not ideal.