Prior to my import of MAME, most imports were taking anywhere from 1 to 4 hours, depending on the number of roms. I'm kind of over the whole slowness issue, because MAME was the last emulator imported, and in the grand scheme of things, 24 hours wasn't the end of the world.
Thanks for the Welcome. I had previously used HyperSpin, and was dreading setting up the frontend again after I lost everything, which prompted me to look for something new. Launchbox has been a great experience so far. Minus the MAME import part of course.