How many sessions of Survivor should it take to max out Crit. Damage and Chance? [IJ1]

I've finally got my FPAM to lvl50E2 and now I'd like to bring it up to speed with some augments.

How long has it taken you guys to max out your augments for crit? Not too concerned with health and damage so far. Those feel like they take even longer.

Credits aren't too much of an issue. I normally get to round 9 before I forfeit.

Thanks ahead