How often are you restoring your iPhone?
Also, the iPhone will be up and working before it's restored all the data which is fine for most people.
You seem to have a very esoteric workflow.
Had to restore it as a part of the android migration process for example, in order to migrate the whatsapp messages.
Also, Apple support tries every time to get the user to factory reset and restore their phone as a method of not having to fix the issue.
Restoring 1TB of data over a USB 3 link is usually done rather quickly.
My HTPC also has a 2.5" 5TB disk attached via USB 3 and I have only gigabit ethernet at home, still the data flows quite fast when I copy new videos - compared to the iphone attached via lightning on USB3.