As a native Russian speaker and someone who reads printed Russian without a problem, I still struggle to read Russian cursive reliably. It's something that takes practice and occasionally even the ability to infer what the word ought to be.

If I had to work with and encounter Russian handwriting on a more regular basis I'm sure I'd be better at it, but as is, with me only needing to try to decipher things once a month, I find myself struggling. If I were just learning the language I would hate to be subjected to that.