Why is Minecraft lying when I have OBS open?

Ga
2

In Minecraft (more precisely Badlionclient) I have the latest when I have OBS open only 20-30 FPS (constant) but when I then hide the game recording right back to the 200 FPS! But why? Oh yes and it is extremely annoying! And so it is with Streamlabs OBS!

Mi

With me too I have no idea!

Ga

But I've only had this for a few days!