What OS are you running?
Also under what profile did you run your PolyLite PLA on CURA?
I noticed the start up time being a lot longer as well, not sure why but I would guess it has something to do with CURA 2 having SO many more options and a much slicker UI than its predecessor.
I’m running Windows 10 Pro on an i7-5960X, 64GB ram, NVidia GTX 980 Ti, 4K monitor, and Intel SSD 750.
I write CAD/MCAE software for a living. I specialize in graphics(OpenGL) and overall architecture. So the PC was designed to compile software very fast. That Intel SSD 750 makes the difference, at 300,000 IOPS and 2.4 GB a second.
I used the standard Polylite PLA profile (0.25 mm layers).
At the time I downloaded Lulzbot Cura2, the windows build was 2 months behind the Linux and MAC build. I have caught up since.