Hi, I have a 4 years old notebook which I use to play some games (plays LoL Very High at 60fps) but whenever it reaches 85ish degrees Celsius GPU usage goes down to 33% in order for GPU to cool down, which can be troublesome. I cleaned my laptop and it only made it last a bit longer until it reaches 85ish. Does changing the thermal paste massively decrease temps or does it barely change anything? Also does buying external fans (that thing you put under your laptop who has fans) help by a lot? Sorry if this is the wrong forum to ask ^^ (also sorry for the bad English)