huge fps drops in apex legends

Im using lenovo legion 5pi  (i710th gen + rtx 2060). the problem is in apex legends my frame drops from 120-40 fps in most of the cases im playing it in 1080p low setting , i have the latest gpu driver and latest windows update i dont know what the reason . I saw lenovo was the official sponsor for apex and got this laptop now im soo disappointed can you guys help me to find a solution? Im not able to get a constant fps in this game.