There are specific nodes that handle the mapping requests that are sent via https://community.eveonline.com/support/fleet-fight/ but those are (currently) running on the same type of hardware as the TQ Tech IV “rank-and-file” machines as those machines perform better than the dedicated hardware in TQ Tech III.
The benefit of sending in Fleet Fight Notifications is that the solarsystem will be isolated on their own node (like Jita is all the time) instead of being mixed with about 20-40 other solarsystems. Then in 1-3 years when we start upgrading again, then the fleet fight nodes will be moved to the best hardware each time.