It its true that train get priority in NCR...
So it can easily be speed up 2 Hrs after increase speed to 130 MPS. As per details below.
MUV-ALD - 30 Mnts (Always rchd ALY 30 Mnts before time)
ALD-CNB - 40 Mnts
CNB-NDLS...
more... - 60 mnts
Its Practical to achieve speed up...