I have tried a single SSD, a 2 SSD Raid 0, and a single HHD and the save times are almost the same.
my template is fairly big and takes about 5 seconds to save. (5.6 HHD and 4.8 SSD)
The SSD Raid 0 has a read write speed that is almost 10x faster than the HHD and yet it only shaves about 15% off the save time.
I would like to see this improve somehow.