Emacs ESS evaluating slower than normal R

Question

Is ESS' R-mode also slower for you than just plain R? Mostly the text gets sent really slowly to the other buffer. Is this normal or is there something wrong with my setup? As suggested: ``` sessionInfo() R version 2.15.1 (2012-06-22) Platform: i386-pc-mingw32/i386 (32-bit) locale: [1] LC_COLLATE=English_United States.1252 [2] LC_CTYPE=English_United States.1252 [3] LC_MONETARY=English_United States.1252 [4] LC_NUMERIC=C [5] LC_TIME=English_United States.1252 attached base packages: [1] stats graphics grDevices utils datasets methods base loaded via a namespace (and not attached): [1] compiler_2.15.1 tools_2.15.1 ``` My custom `.el` file for `R`: http://pastebin.com/WrUxBAyG Hopefully someone has a clue what might be off. EDIT: I actually tried disabling all those R packages, and they don't seem to be the problem.

Accepted Answer

```
(setq ess-eval-visibly-p nil)
```

Solves the issue of slow blocks of code as mentioned here

Emacs ESS evaluating slower than normal R

Solution

Problem