Is there not a difference between flash memory and fully fledged ssd?
For reference, my ipad air 2 just took 23 seconds to boot from cold, my sp3 (not cold boot, just a reboot) took 16 seconds (win 10, but no perceivible differnce)
And not sure what is wrong with your sp3, but other than since i got 10 and have had a few understandable issues, my sp3 would never get rebooted, why would i?
For reference, my ipad air 2 just took 23 seconds to boot from cold, my sp3 (not cold boot, just a reboot) took 16 seconds (win 10, but no perceivible differnce)
Ask yourself this question: how many times did you have to reboot your iPad versus your SP3 in the last month ? The iPad boot-up time is irrelevant since you are never rebooting it except on system upgrades.
And not sure what is wrong with your sp3, but other than since i got 10 and have had a few understandable issues, my sp3 would never get rebooted, why would i?