Fortnite ejection?

I have a question and in Fortnite I always fly out after every third or fourth round and I can no longer play on the laptop at 60 FPS but always have to play at 30 fps and even then I always fly out if someone had one Tip for me whether I can undo this? How do you play fluently at 60 FPS?

What does it say if you get kicked out?

This application has crashed and we will now close

What graphics card do you have?

I think it's normal because I was kicked out too, but I'm playing on ps4, I think there are too many online right now