Theoretically, repositioning one's coordinates in 3 dimensions over a limited span in a fourth dimension (time) is limited by c. Same goes for repositioning the 4-dimensional coordinates for the apparent quantom waveform collapse into physical manifestation of any distinct "object". Assuming that alien physics only applies to these 4 dimensions, unmodified, is pure hubris. Multiple theories accommodate space travel by adjusting coefficients other than velocity. A "warp bubble" or "wormhole", for example, theorize the ability to cover large distances faster than light moves through vacuum over that same distance by, instead, changing the distance between interstellar objects, or changing the effective space-time properties of the craft, itself, in it's localized spacetime becoming non-equivalent to that "light through a vacuum" course. Even quantum entanglement describes spooky action at a distance which you might assume impossible if you assume c limits this superposition in space-time.
This c limit obviously does not apply to "everything" in the universe.
It's fundamentally wrong to assume that interstellar travel requires any velocity whatsoever.