orgtbl-optimized

orgtbl-optimized is a variable defined in `org-table.el'.
Its value is

t

Documentation:
Non-nil means use the optimized table editor version for `orgtbl-mode'.
In the optimized version, the table editor takes over all simple keys that
normally just insert a character. In tables, the characters are inserted
in a way to minimize disturbing the table structure (i.e. in overwrite mode
for empty fields). Outside tables, the correct binding of the keys is
restored.

The default for this option is t if the optimized version is also used in
Org-mode. See the variable `org-enable-table-editor' for details. Changing
this variable requires a restart of Emacs to become effective.

You can customize this variable.