Start Monitoring CPU,GPU Usage and Temperatures.
Like Msi afterburner OSD
Propably you can get thermal throttling because you hit to much temperatures, most laptops have problem with temperatures.
download and run Msi AfterBurner ( with install rivia tunner)
Start monitoring when you play and check what is doing your CPU,GPU when you have drop FPS
And most check your temperatures when is drop
Yes, it seems that the problem is thermal throttling. When the computer gets to a high enough temperature, usually about >85 degrees celsius, I will start getting FPS drops until the temperature returns to around 70 degrees. However, I am unable to increase the gpu fan speed to solve this problem as I don't think it has a fan controller chip. Any way I can turn off the thermal throttling process itself?
Do you have cooling desk for laptop?
Better if you go clean laptop inside drom dust and give a new thermall paste
Thermal Grizzly or BeQuiet DC1 paste is best
Many laptop have problem with termal throttling it's nothing new
I sugested just clean, you can buy a cooling desk for laptop and give more fan speed
it is the best solution just clean the laptop it's very important
clean everything inside compressed air
To off thermall throtling i think it's imposible
it is save security inside in your cpu,gpu