>>284615228
It will take your eyes a bit of time to get used to a fixed focal distance for everything, look up the vergence accommodation conflict for details. But that's usually more of a problem for up close things, not mid distance. If you can get objects in focus if you try hard enough, then you'll eventually get used to doing it naturally. If not, check the supersampling, adjust the headset, try a different game, get your eyes checked.