fatal performance test with vbseo

When I run webpagtest.org for my site with vbseo enabled, then it needs twice the time as with a diabled one.

Is there a possibility for me to see which components need the most time?
- do you know which?
- can I locate/measure it?

Thanks

vBSEO Optimization Tips - vBulletin SEO Forums

vbseo should only effect the very first part of the waterfall on the back end. After that, it is all browser rendering, as nothing will start until vbseo is complete.

Thanks for the link.

vbseo takes about 3 seconds on that waterfall. And I've got a strong server.
Isn't there a possibility to see, which function takes how much time?
Perhaps there are just a few, consuming a lot of time. And then I would like to decide to disable or optimize those points.
But I don't want to start disabling without knowing anything about the impact.

Nothing?
It should be possible to measure that. So I don't have to disable things which I think might be lowering performance ... although they do not.

There are no benchmark performance meters in place. If you're getting high wait times, consider upgrading your server with more ram/cpu. I have a neglient different with vbseo on/off.

I've measured everything on my server this week. And I don't need nearly something of my cpu/ram .....
So there must be something special, which wastes time. And this is very important for me.
Other possibilities? Can I send you my xml to have a look?

I have everything enabled and nothing special in my settings...

So what shall I do ... with my 3 second difference?
Any idea how to go on to find the big one in there?

Without more details there is not much we can say. You should supply following information so we may assist you

1. Please supply us your server specifications
2. Is this a dedicated server , shared hosting or Virtual Private Server
3. What are your online user + guest count with 15 minute cookie timeout
4. What was your load levels average prior to vBSEO installation and what are your current load levels