Yes, the Internet is a mess here. The regime has limited connection speed to 128 for home users and 512 for companies. In addition, in most locations there is no broadband connection even in the capital. Also, they have filtered web sites. For example, you cannot search for "Women Mathematicians" because "Women" is a filtered word.
I have to mention that having satellite receivers is illegal in Iran too. In other words, everything that connect people to outside world is either forbidden or limited.
Good to know that, in Iran you cannot wear what you like, you cannot have your favorite hair style, you cannot listen to your favorite music, you cannot watch a movie without massive censorship, you cannot have your own preferred believe, and...
Shortly Iran is currently in hands of fanatic totalitarians. If you hear there is election in Iran, don't believe in it. Election is a joke, the candidates are specially selected. There is no freedom in this land.