Fortnite low FPS rate

[Rogphone8user]

Hi. I have problem with fortnite. I bought rog phone 8 for this game and something is wrong. Everything working well until I start game. Its cery strange because when game start and its about 30 sec to complete players its ok ( 60fps). After this  game start and I fly bus FPS rate change to 5-7fps per second and stay that low. Impossible to play. Please tell mi solution of this problem.

Regards 

[Rogphone8user]

I looking for the problem and I see that CPU working on 0,9 MHz and keep this value ( 10 - 20 %). GPU working on 99%. I thing this is problem. 

 

[Mattias_ASUS]

Hello @Rogphone8user 
Which power setting are you using in Game Genie?

[Rogphone8user]

X-mode