Fortnite little fps in round?

I have a ryzen 3 3200g and a rx 570 8gb ram and in creative i have up to 180 fps, but when i go into a round the fps are around 40-50. And in youtube videos they all have more fps in one round. I've already tried to bring down the graphics.

The hardware is not the best now, but you can explain it in such a way that in normal Punlic rounds you have to calculate more than in "creative". I would recommend setting the render distance a little lower, that should solve the problem to some extent