. It was comparable to ipad.Welcome to the forum
iPad and Android tablets all wake up instantly Windows never has unless you only used a screen saver. In short there is no way to get Windows to wake as fast as either iOS or Android.
Yes, this has been my experience with both SP and SP3. If it's been asleep less than 4 hours it wakes in about 2 seconds. If it's more than 4 hour it has to come out of hibernate.I read that the Surface 3 goes into Hibernate after 4 hours of non-use. This causes it to wake up slower. The machine is basically restoring everything off the SSD.
For less than 4 hours, the Surface 3 is in Connected Standby. It should be almost immediately, like an ipad, Android or Asus T100. Asus T100 is another Windows device, but it would remain in Connected Standby then entire time it was in Standby, rather than going into hibernate at some point.