Is something wrong with this page?

I use Dreamweaver for my html and css coding. So far it works great for me and I like it. I just started this project and it seems the code is slowing down dreamweaver like crazy. I know this sounds weird, but I have no other explanation. All other pages open fine, but this one, give the me the wheel all the time. To the point where I can almost not work on this.

Any ideas why this page might be causing this issue?
The page is here:

Thanks a lot for any help!