Meh, I`d go for something that will lift the laptop about 2" off the desk b4 thinking of laptop coolers.
Flat on the desk, many HP AMDx2 based lappys get to 50million degrees just sitting there! Put em on something akin to stilts and they only reach 25million!
See if u can comfortably and strategically raise it off the flat surface and see how that goes for a bit.