Hmm.. I´m on a Mac Book Pro with 2.53GHz Core 2 Duo, 4GB and a SSD... It takes at least six or seven seconds to start... I thought it was an "Alpha" thing, but it's been too slow always to start. I was actually hoping and waiting for a faster startup version.
Opening takes a lot, and subsequent launches don't seem to make a difference for me... hmm ...nope it's always taking like seven seconds from the time I click the Sublime Text icon to when the window is finally open. How can I help to see what it might be?