When encountering repeated messages RTTM translates each duplicate individually, quickly reaching the point where Google translate stops responding.
-> This should be avoided by caching messages and reusing translations for duplicate messages.
When playing on servers with some chat conversation by others RTTM spams Google with those messages though you don't need them.
-> It would be nice to have some settings to only translate messages by specific players or containing your name directly and add a clickable text to other messages so you can translate them later by clicking on an in-chat button.