Very slow loading of pages with flash content in IE11 in SBS 2008/2011 networks

Hi

I have three different clients. Two of them have SBS 2011 with Win7 Pro 64 clients, and one with SBS 2008 with Win7 Pro clients.

Both environments uses Folder Redirection as setup default by SBS installation.

In all these networks, we recently experience that loading web sites with Flash content (e.g online newspapers) has slowed down dramatically when using IE11 (Chrome/Firefox works fine).

When disabling Macromedia Flashplayer in IE Addons, the browser speeds up to normal again.

I've tried to reset IE, delete all temporary files and reinstall Flash, but still with no luck.

I presume others have issues with this as well, since it has happened in three different networks for me...

Any suggestions is very appreciated.