You are rambling from even the first sentence. You mentioned space and you call it time.
Acting like you really know what you talk yet you don't even mention how it actually works.
To make it worse, you assume that Kishi actually gives shit about laws of Science when it had been violated hundreds of times since Part 1. One of the obvious example is Chibaku Tensei core.
Just focus on what the manga provided. Remember that Minato was surprised that Obito can chase him to wherever Minato went with Hiraishin so fast, even if it was far away from the village. There was no sort of time travel there. All happened in real time.