This problem isn't exclusive to the Beta, but it seems to be much worse in it. Basically, the game will freeze for a few seconds before resuming. Except once it resumes, I have screen shake. The world is no longer anchored and shakes whenever I look around. The usual fix of double-tapping the side to see the real world for a secind before heading back in fixes it for maybe a few seconds before it starts freezing again for a longer time and ends up right back with screen shake.
I've tried resetting my headset, reinstalling the game, and changing graphics settings. But it keeps happening.