Firefox Worked Slowly...

[Mohammad BadieZadegan]

Hi everybody,
I was installed OpenBSD on many Servers that have more CPU types but on
every of them while I worked with firefox it handle websites very slowly!
My Network bandwiths is not bad.
Is that Firefox needs some special configure on OpenBSD?
Or The better way is using another browser such as midori?
What can I do?
Regards.