Yep. I recall couple years ago when Google updated their Gmail interface(wtihout any way to go back of course), Gmail suddenly became unbearably slow on older machines. Laptops which I could easily use for managing my emails were now stupidly slow, because someone somewhere at Google decided that having a slighly nicer interface is worth the extra CPU time. I wonder how much that one single change cost the world in burnt electricity, just to produce some useless features in gmail.