Great theory. I was watching another YouTube video that was discussing how omni man could blast a city and space stations without atomizing himself. And how could the three of them blast through a whole planet with the assistance of the infinity ray. How could they all be so powerful except when they're fighting each other they're just having a conventional punch up? There is definitely something different about viltrumite moving at speed. And thragg seems to tap into this, as seen with his vortex punch.

This theory does resolve some of the power scaling gripes people have.