I visit about 20 sites on a regular basis.
The only sites I have a speed issue on are Free Republic, The Daily Caller, and sometimes Fox Sports.
Everything else is just click-click-click.
I do have problems with some videos....
Bloomberg takes forever, and amazingly, some Microsoft website videos, too.
But the top video sites, You Tube, etc., are practically instant, stream perfectly, and have perfect visual quality.
Perhaps if you're a gamer or visit lots of small sites, IE is bad?
For me, almost no problems at all, and it is perfectly integrated into all of Microsoft's most used programs.
For goodness sake, it’s just a browser. Use whichever one you feel the most comfortable with.