Maybe because your paste situation was so much worse than mine. Mine only sucked when maxing out around the 100ºC mark. A user with liquid metal implied his case temps may gotten worse because now heat transfers faster into the case: [SOLVED] Radeon 780M: Thermal throttling to 800Mhz until entire laptop chassis cools off - #43 by Adrian_Joachim
Fun fact, if you don’t want to read then entire thread: my PTM delivers the same benchmarks and temps as liquid metal. So past PTM/liquid metal, the heatsink becomes the bottleneck.