DOOM 2016 vulkan performance drops prime render offload

Graphics / Linux Linux
1

playing Doom 2016 vulkan (no problems on opengl) on 1440p Gnome 46 = drop to 38 fps every 3 secs
works fine on Windows 11

specs:
rtx 4070 laptop
7940hs

nvidia driver = 550.78
kernel 6.6.48