I saw a video from LTT how to improve the performance of a M1 MacBook Air with some thermal pad. The aluminium body helps to dissipate the heat. I thought: “well, my Yoga has an aluminium body!”.
So, I put a piece on the heat pipes (and squished them a little bit between) and a bigger one on top of everything, both 1 mm thick.
Cinebench R23 was before around 3000 pts., now the 30 min test was 3366 pts.