And I made new release v0.8.4 which solves performance problem.
I found very nice solution to ensures single Calypso UI update after multiple changes from single UI command.
For example implementors window updates only once when you rename implementor message. Before number of updates was equals to number of implementors because every rename triggers method remove. Same problem is relevant to current MessageBrowser. Now in Calypso there is general solution to the problem.
Also in this version there is context menu item to switch order of class hierarchy in variables view and method visibility view. So people who prefer classic order for hierarchy should be satisfied.
Best regards,
Denis