firefox-3.6.10,1 slowdown

[KB N]

Greetings,


When I visit a web page with many big images like


http://gall.dcinside.com/list.php?id=cat&no=273312


my firefox starts to crawl and almost freeze. Even after it finishes loading all the images, I can not scroll down/up 
the page using my mouse wheel becuase it makes my desktop almost frozen. 


On the same machine, I can view the web page without any problem using Opera 10.61.6430 web browser.


$ uname -a
FreeBSD space 8.1-STABLE FreeBSD 8.1-STABLE #0: Fri Oct  8 14:21:32 KST 2010    

$ $ ls -l /usr/ports/www/firefox/Makefile
-rw-r--r--  1 root  wheel  3800 Sep 17 00:07 /usr/ports/www/firefox/Makefile


The kernel is GENERIC, and I don't do any configuration when compiling firefox (i.e. just dbus support checked).


The video card is X800GTO 256AGP on Asus A8V Deluxe motherboard with Athlon X2 3800+ CPU and 2GB RAM.


I've installed xorg and gnome2 ports and they are in the default setting (i.e. I didn't do any fancy customization).


Thanks.