So I got this Lenovo legion go S for about 4 months I been playing elden ring like crazy ,playing nearly every day after work I like to use performance mode how ever recently on performance mode the heath from fan very bad I had to keep it on balanced mode but even then on balanced mode the heath was insane then I realised it's time to open the back of the device and check the fan and then it hit me I was just like wow no wonder there so much over heating one think I know that Lenovo have made this device for you to easy open adm clean it I followed some videos on YT and officiall Lenovo website I used proper magnetic screw driver basically proper staff so for any one if your Lenovo is producing more heath maybe it's sign for you to clean the fan ..just wanted to share it here everyone have wonderful day