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TPS40210-Q1: Flyback output capacitor charging time calculation

Part Number: TPS40210-Q1
Other Parts Discussed in Thread: TPS40210

Hi

I am using TPS40210-Q1 flyback design with three output in my project.One of the output i have used 100uF capacitor in design with 22nF(~2ms) softstart capacitor.

I am facing startup issue with this design ...

Could you please help me how to calculate output capacitor charging time ? 

If 100uF Capacitor means what softstart capacitance value need to use in TPS40210 SS pin ?

Please share the calculation for above very useful for me