Now your powers grow and develop one at a time over your acclimation period, proportional to their SP cost to how much you've spent total on all of your powers. If you bought 100SP worth of powers, then a 10SP power would take one-tenth the acclimation period to develop.
You are now forced to take the entire length of your acclimation to grow into your abilities and in the same order as their requirements; no level of creativity will shorten the duration. Multitasking abilities can't allow you to train more than one purchased power at a time but may be used to work on abilities contained within a power.