Cool over heating , will reduce cpu speed wirch increase dpc latency
P= f * V°2 *£
P = heat
F = cpu frequency
V = voltage
£ = adjustement coefficient
To reduce P , f gonna be lowered and so v .... Basically this is what happen to macbook pro , when it s overheated , they loose perf
My last advice , is if you go laptop , go with real Pro ones ( hp zbook , hp elitebook , dell precision , lenovo w series ect )