Yes, most likely it will.
Iran has a lot of problems when it comes to managing money and creating wealth. That is because an actually free market is the way to making a country richer and that demands free association and individual freedom in general that are not really part of Iran's ways.
Being involved with nuclear power research and enriched uranium also causes countries to be cautions when negotiating with Iran, which is also bad for the economy of the country.
In addition to that, there is a lot of problems with security and local wars that cause a lot of spending of public funds.
