I have a MBP with 8gb ram, and an 27" i7 iMac, with 16gb of ram, and a 512 SSD. When Im swiping through pages on the MPBs trackpad, or swiping up, down, to show desktop, etc., everything works smoothly, but on my iMac, which is a more powerful machine, Im getting lag. The only time I dont get these issues on my iMac is when I restart it, but after a while, I get the lag. I get the lag on both the wireless trackpad, and when I press one of the shortcuts on my Logitech mouse. Im not running anything that takes up a lot of power from the iMac, with chrome, firefox, and itunes being the main programs open. For example, I will swipe to the right to take me to another window on my iMac, and there will be a 2-3 second delay before it actually switches. Or when I press one of the buttons on my Logitech mouse, to show me desktop for example, it has the same delay. Even if I press the shortcut keys on the keyboard, I get the same response. Anyone have any ideas as to what is going on?