Comment 6 for bug 742664

Removed mention of the white flashes from the bug description because that is bug 687567. However this bug remains valid. Indicators (and any panel menus) are slow to respond to fast movement.

I found a few potential fixes for this laggy behaviour last week. Now just trying to decide on the best solution.

You might think the lag is not noticeable on a high-end machine, but trust me - you will notice the difference even on a fast machine when it's fixed.