|actually nice! strange it's completely mute, even some background music would have been good|
it's the lightning effects. since adobe don't care about taking flash into the 2010+ era all graphics are still rendered with your CPU so the calculations become harder and harder the larger the flash resolution is. resize the window smaller and you'll see that it runs a lot better. even -8 keep making this mistake with his blur and lightning effects.
strange that the maker of the flash didn't spot this in production and removed the filter that im pretty sure is there, or whatever else overlay that is causing the graphical calculations to go up. doesn't help that modern browsers gimp the flash plugin either so they run slower...