Performance problem

I have a problem of performance on my server. I have 3 forum and all 3 with Vbseo. In the last days the performance was decreasing with this load average:

Load average: 4.28, 3.46, 2.70

There is someone that can help me to solve this situation?

Hello ned,

Are all three running vBulletin 3.5.x?

Yes, 2 board with 3.5.3 and one with 3.5.4

Great.

If you aren't already, you may want to move vBSEO's rewrite rules to httpd instead of .htaccess. That will help performance a bit.

How can I make this?

Here's a sample posted by Oleg. Feel free to open a Support Ticket if you need additional help.

rewrite rules to httpd.conf: How?