Example:
A320-214, CONF 3
EGAA 17, 18deg C, wind +10
ex A)
Optimum V1/VR
Fixed V2/VS = 1,35
MTOM = 60001 limit code 4-4
speeds 138 146 148
ex B)
optimum V1/VR
optimum V2/VS (in this scenario optimum is 1,13)
MTOM = 67829 kgs limit code 4-4
speeds 134 134 136
to point the obvious, in this scenario the lower speeds produced the best takeoff.
O/Z