I recently updated Audacity to the latest version as per Mint Update. It was very slow and wouldn't play anything. I uninstalled it and went back to the earlier version and had no problems.
The version that works for me is 1.3.3-beta.
I now notice that there has been another upgrade listed 18.104.22.168-beta (or something similar). Has anyone given this a try. I don't want to throw away m current version if the new one is still going to be a problem.