Dear 747 focal-brahmi:
your answer was very nice and clarifying, anyhow I would like to know about your great knowledge.
Lets figure out for the same aircraft type:
AIRPORT X OTOW 152.000 lbs (V1/VR/V2) OAT 15ºC Pa 1.000
TORA 7.000 feet
AIRPORT Y OTOW 152.000 lbs (same speeds) OAT 30ºC Pa SL
TORA 13.000 feet.
In both cases operating on Balanced criteria. In the second scenario we have to increase V speed (IAS) few Knots (1/2), even though it requires much higher TAS to reach same IAS.
If ASDR as well as TODR are going to be higher in the second example, make sense to increase speeds?.
I do appreciate your answer I am eager to learn, it seems you are eager to teach.