Here is the number that sits behind every KryoZon H-series product. A community report that triggered a lot of our research documented a gaming laptop CPU dropping from 4.32 GHz all-core to 2.84 GHz within 3 minutes of sustained load. That is a 34% clock-speed loss.
Your compile times go 34% longer. Your render queue goes 34% longer. Your game's minimum frame rate falls off a cliff. Your Blender viewport stutters mid-rotation. The laptop is not broken — it is running exactly as its thermal stack was designed to run, and its thermal stack was not designed for the workload you are putting on it.
Thermal throttling is not a soft performance tax. It is a hard ceiling your laptop applies to itself to avoid damaging its own silicon. Your CPU refuses to run at the speed you paid for because the cooling it shipped with cannot handle it at your current workload.
An H-series cooler does not overclock anything. It does not boost performance beyond spec. It prevents thermal throttling by removing the heat pressure that was forcing your laptop to underclock itself. The result is your laptop running at the speed it is supposed to — not faster than spec, and not slower.