Devaluations in the range of even 90% aren't hyperinflation. Hyperinflation is "wheel barrows of money for bread". It is a scale and rate of devaluation that does not allow informed financial decisions about the market to be made.

It is very different to a currency falling a large amount of its value over the course of a couple of years. People have time to divest, predict, etc. - otherwise engage in normal business activities.