CPU Usage and My SQL Process load issue

[friendlymela]

Originally Posted by Max Taxable

DDoS attacks are very rare. Many spiders and bots hitting your site isn't a attack. Thousands of them at the same time, all downloading images and larger files, is.

You can block "bad" spiders and bots quite easily, using this mod.In addition you should change the usergroup permissions, setting limits on signature images. For future.

Thanks MAX I am thankful to you i am already using this mood and soon i'll disable the CF also i have remove gif images from signatures and have made settings also

Today i have see the result its much better for me have look it

http://gtmetrix.com/reports/friendlymela.com/iN7NaKjs

but one thing is confusing me the page load time is just 2.89s but the GTmetrix showing page speed down grade is 67 .. whats wrong with it?

would u like to tell me how i can specify image dimensions ?