Escape Path
What exactly isn't going as expected?
Time available and possible Flaps Slats overspeed warning.
Assume the aircraft is at max landing weight and below and consider the ALT* and level segment with TOGA thrust initially commanded then CLM thrust.
The magenta target speed would jump from SRS commanded speed to Green Dot (around 210 kts). Once the flaps have been retracted one stage to say F2, auto thrust would limit the aircraft speed to 195 kts (200 -5). As the VFE speed is approached, say around 190 kts, the flap handle is moved to 1+F and the auto thrust will continue to accelerate the aircraft to 210 kts (215 - 5). At 201 kts and above the overspeed warning sounds until the flaps are at 1+F.
In level flight with all engines operating, Autothrust can accelerate the aircraft faster than the flaps move.
"Note:
OVERSPEED alert, and VLS displayed on the PFD, are computed according to the actual flaps/slats position
VFE and VFE NEXT are displayed on the PFD according to the FLAPSlever position."