I have a problem with Google Chrome on my 16.10 laptop. When I have at least one Google Chrome window open at different workspaces, Chrome gets very sluggish. Interestingly this is only the case if certain websites are shown in one of the windows. I was not able to find out whats the specific trigger, but it might have something to do with flash or html5. It's certainly the case for Youtube and Google Maps, but also for dict.cc which shows advertisement. When I have one of this sites open but have the window minimized, there is no problem.
I testet this also with Firefox, but everything works fine in this case.
Maybe someone has an idea?