Two days into his travelling across the wide continent, Silent Light could feel mental exhaustion creeping up on him already. The distance itself wasn't much of an issue, since he teleported to Sunpeak, shortening his route by a lot.
But the non-stop state of alertness, and the fighting every other hour, was slowing down the travelling by a lot. Of course, Silent Light wasn't alone, and his escort allowed him to plow through combat efficiently.
They had yet to cross a zone where the monsters' levels equalled or surpassed theirs, and this made it a lot easier for them, as a group. The half-party of six, including Silent Light, was trudging along much faster than Astaroth and Violette had, back when they did this same cross-country trip.
Of course, they were also passing through zones that Astaroth had gone around, since he was lower on the level scale when he was doing it. Silent Light was level fifty, and his party members were all around level forty.