actually this just might translate into relativistic reactions nonethless a powerboost
Murata stated on a streaming (7/5/2018) this:
Q: "Murata sensei, here's a question from overseas, can Geryuganshoop actually create black holes by manipulating gravity? It seems like they care about this a lot."
A: "hm~, I'm not sure. Black holes seem too powerful. I won't know for sure without asking ONE. But his ability to control flying object should be above Tatsumaki, because he can eliminate the friction between rocks and air. If Tatsumaki throws rocks like he does, her output will be too powerful, the temperature increase due to friction and pressure, and evaporate the rocks in an instant. Geryuganshoop's psychokinesis can eliminate the friction between objects and air, the rocks will fly at sub-light speed*, that's the setting I based my drawing on. Tatsumaki can throw very large objects, but there's a limit to how fast she can throw them. Geryuganshoop is the greatest psychic in the universe after all. That's what I think. (he repeats this several times)"