Well that is some relatively ancient hardware which could be easily overwhelmed by a modern web browser.
I can only guess that Firefox is using so much CPU time to render the page because the Intel 965 GME graphics processor (or the Mesa driver driving it) isn't able to do the hardware accelerated compositing that is a standard feature on most modern computers. Simple effects like opacity and composite layers could be problemmatic. A smartphone would likely be faster.
I can only guess that Firefox is using so much CPU time to render the page because the Intel 965 GME graphics processor (or the Mesa driver driving it) isn't able to do the hardware accelerated compositing that is a standard feature on most modern computers. Simple effects like opacity and composite layers could be problemmatic. A smartphone would likely be faster.
