I am struggling with an issue at the moment related to mouse events or more specifically mouse movement. I have found that moving the mouse in my game causes it to slow down. Rapidly moving the mouse can actually freeze the game, I believe EnterFrame events are actually dropped when the mouse is moving rapidly.
I thought at first that it must be something I coded incorrectly so I used the Flex 4 Beta's performance tools and analyzed the Flash 10 SWF that I build using Flash CS4. Mouse Events were the leading performance hog by far.
Whenever the mouse moved the CPU usage would skyrocket. I then tried an empty Flash App with no Actionscript, I had the same CPU spike.
So if I'm getting this problem with a Blank SWF how come I don't see this problem talked about all over the internet, how is every other Flash Developer not running into this problem?