Thanks for your comment, @maciwol
I’m afraid that the plugin doesn’t have an option to shorten/limit the comment to 50 characters – thanks for the suggestion! I have added it to our feature request list so that we can track the amount of demand for it. We will let you know if we add this to a future version of the plugin.
In the meantime, I’m sorry that this isn’t possible. As an alternative, you could set the excerpts option to ‘true’ to show an excerpt of the comment (limited to 20 words), or ‘false’ to show the full comment.
Please let us know if there’s anything else we may help you with.
Cheers!