Quest 3 starts to run slow after 5-10 minutes of playing Beat Saber

I got the Quest 3 for Christmas just for exercise in Beat Saber. I've been playing/exercising every day on it since then, having missed only a handful of days when I was sick. My skill level has increased dramatically since I started, but I've noticed that after a few minutes I start to miss blocks that I can see my sabers go through. I'm pretty sure it's because the Quest 3 is overheating or something. I've turned down all the settings I can, I really have no idea what I can do now. It's becoming extremely frustrating to know that I'm doing better than the game/headset is letting me do.

Any help?