Browser is partially overloaded

Hello, please rework the source code of the page. The Motor-Talk page hangs with me partly enormously (for example when scrolling in the golf forum, or even here when writing a little). Does not run as it were. Sometimes also the browser hangs almost, if you have several motor-Talk tabs open. It definitely does not lie on my hard/software (Vista SP2, IE9, Dual Core 5600, 2GB RAM). I did web design myself for years. I also did this only with Motor-Talk, all and The problem has been going on for a long time, but now I had to tell you. MfG Felix