Nah, on the Mig-25 I think it was limited by how long it would take to break down.
Thus, this is an upgrade.
The Mig-25 had about thirty seconds on full after burner. It was basically a missile with a pilot....it’s bark was way more than it’s bite. When Viktor Belenko defected the Mig-25 was exposed for what it was.....a propaganda piece!! The Mig-31 was the Mig-25 with a really fancy radar!!!