It's not that finicky. She is in one of the Lagrange points now, so that means that for every year that passes the three bodies will become out of sync by 20 milliseconds or so. This is so small that there is no noticeable drift. Even if this was a hundred times worse it would still be not really noticeable because the speed of information being transmitted through neurons would still be slower.Good point, but if the communication and keeping the two brains in sync is so finicky, the minuscule dilatation between Earth and an orbital station would probably cause any clock signals/timestamps/etc. to go out of sync in the long term (I think with GPS or GLONASS it's less than a nanosecond per Earth second). I'd imagine that a system as complex as the human brain would involve timing issues on that scale and the Taylor nodes would require some sort of error correction for that. But yeah, this is splitting hairs at this point.
When I mentioned being accelerated "very fast" I meant like close to light speed.