I have a 2014 Macbook Air I use for school, but it has a MAJOR heat issue and the fans disturb everyone in my class. My teacher asks me to shut them off, so I do, but then it gets REALLY slow due to the thermal throttling to keep it from overheating. Can anyone tell me how to fix this?? I have tried: SMC reset, PRAM reset, undervolting (i have an intel haswell), overclocking, reinstalling MacOS, cleaning the fan, replacing the battery, wiping the computer (twice), and trying all sorts of software to help the fans. Help would be greatly appreciated because the next thing on my list is paying 180$ for it to be torn down and inspected.