That app will not work for laptop fan controls. Those are hardware level controlled and not user configurable. If there are thermal issues it is likely that the GPU has been overclocked at some point, which is a bad idea on a laptop, or the unit has been run on a soft surface like somebody's pants legs, carpet, bed clothes/blankets, papers under the air intake vents, etc. that has caused some thermal damage.
The cooling systems on all laptops are precisely calibrated to handle the hardware it came with, barely, without modifications to the clocks or voltage, and nothing more. In fact, in many cases they are often barely, if at all, capable of that. Even "gaming" models, don't (And can't) really have any better cooling than any "standard" laptop, with the exception of some models having an additional fan for the GPU in addition to the one for the CPU, but they are still extremely limited when it comes to cooling and I've yet to see any laptop model aside from a couple of very niche products like those offered by Sager that allowed any kind of changes to the cooling configuration aside from simply "active" and "passive" (Meaning throttling the CPU/GPU rather than increasing fan speed, generally for reasons related to battery life). Speedfan, various motherboard manufacturer control utilities and other tweaking applications aside from something like Afterburner which MIGHT allow, on some models, some additional control of GPU fan speed, pretty much don't work on laptops.