I have a fast system (Core i5, SSD), but tab completion is often very slow. I just checked my `oh-my-zsh/plugins` directory, and there are 173 plugins, most of

I have a fast system (Core i5, SSD), but tab completion is often very slow. I just checked my `oh-my-zsh/plugins` directory, and there are 173 plugins, most of which I don't need. Should I purge them? Edit: browsing through the (oh-my-)zsh files, I can see that it only loads the plugins found in the `plugin` environment variable, so I guess the answer is no. The only plugin enabled is `git`. My theme is also very basic (git and mercurial status). Any advice to improve performance?