Patience, please... rendering lots of iterations and long orbits. This stuff aint so quick. Also, it doesn't work in Internet Explorer because IE doesn't support the CANVAS element. Try Firefox or Opera.

It rendered on my Pentium 1.5 GHz in FFX in 7.7 seconds. FFX on my AMD 2.4 GHz took 4.4 seconds.

Update 2010 in Google Chrome: 1.2 seconds. We've come a long way, Moore.