Even with a blank project (no midi or audio events), having a single instance of the latest version of Play (EastWest) with a few instruments loaded causes the project save operation (and autosave) to take upwards of 10 seconds.
For a full orchestral template, it takes approximately 60 seconds to save. Again, this is just loading the instruments and not writing a single note of data.
Here are my system specs for reference:
CPU: Intel Core i7-4930K 3.4GHz 6-Core Processor
Motherboard: Asus X79 Deluxe ATX LGA2011 Motherboard
Memory: Kingston HyperX Beast 64GB (8 x 8GB) DDR3-2133 Memory
Storage: Samsung 840 EVO 250GB 2.5 Solid State Drive (OS Drive)
Storage: Samsung 840 EVO 1TB 2.5 Solid State Drive (Samples Drive)
Power Supply: SeaSonic 660W 80 Platinum Certified Fully-Modular ATX Power Supply
Operating System: Microsoft Windows 8.1 Pro OEM (64-bit)
Other: PNY NVIDIA Quadro 410 512MB