[ESS] Slowness problem for the chunk evaluation

[Laurent ESS]

Dear ESS-Help list,

     When I use the shortcut M-n C-M-x to evaluate a chunk, the work is 
very, very slow, line after line. When I use C-c C-b to evaluate a 
buffer, it works very swift and it is also the case when I use C-c C-c 
in a function for example.

I find that very annoying because the chunk evaluation is a very 
convenient way to work.

I work with ess version 15-09 (I use one of the Vincent Goulet's GNU 
emacs distribution).

Thank you for any pointers to find a solution

Laurent





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