`rowwise()` performance suggestions

In the last dplyr vignette "rowwise" the author did note about rowwise performance. For example, rowSums is faster.
Actually, I don't know a good place to suggest so I leave it here.

As I know, dplyr is much more suitable to be column-wise and a lot of rowwise operations will be handy in coding and typing but slow.

Are there any plans on passing matrix operations into rowwise?
There are tons of str_ operations. What if create row_ operations like row_sum with a search of predefined optimized operations by first letters in RStudio?

Coming to dplyr 1.0.0

Much better support for row-wise operations: vignette("rowwise").

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