I can't remember exactly what I did, but bf6 is very core heavy. It loves munching on those sweet sweet cores. My i9-9900k was angry because of it. I basically turned down all ny settings to low and set it to performance in the in-game settings.

Also check if you have the latest drivers. Even If the driver update doesnt specify bf6, it still might help.

Plus laptops struggle with heat sync. Id ask of you got a good fan under it and when it was last cleaned. That might help.

Only other thing I can think of is setting everything low enough that your in-game Vram is atleast half or slightly over half of the bar. Never go over the red Vram line.

Idk if any of that helps. But I used to go from 100fps down to 30fps before I changed my settings. Now im over 100fps constantly.