As I gather some people have issues with it/blame their issues on them, I have recompiled the smoke res file into two versions:
https://donnessime.github.io/Salem/nosmoke.zip
https://donnessime.github.io/Salem/littesmoke.zip
Both files are installed as any other custom resource file: simply extract to ~/Salem.
This will allow you to check whether your issues disappear when there is no smoke anymore.