patched:
# time ( npanelize < ~/lsoflsof )
num  calls                time                       self            name
-----------------------------------------------------------------------------------
 1)  161        5453,04    33,87   43,53%   5453,04    33,87   43,53%  _nlist_print_with_ansi
 2)    1       12500,28 12500,28   99,79%   4052,65  4052,65   32,35%  n-list
 3)    7        8041,91  1148,84   64,20%   2588,87   369,84   20,67%  n-list-draw
 4)    7         327,91    46,84    2,62%    322,30    46,04    2,57%  n-list-input
 5)    7          40,77     5,82    0,33%     31,97     4,57    0,26%  _nlist_setup_user_vars
 6)    7          28,91     4,13    0,23%     28,91     4,13    0,23%  _nlist_status_msg
 7)    2          24,94    12,47    0,20%     24,94    12,47    0,20%  _nlist_cursor_visibility
 8)    1          26,79    26,79    0,21%      9,97     9,97    0,08%  _nlist_exit
( n-panelize < ~/lsoflsof; )  14,33s user 0,27s system 94% cpu 15,488 total

clean:
# time ( npanelize < ~/lsoflsof )
num  calls                time                       self            name
-----------------------------------------------------------------------------------
 1)  161        5410,49    33,61   43,57%   5410,49    33,61   43,57%  _nlist_print_with_ansi
 2)    1       12391,49 12391,49   99,78%   4030,62  4030,62   32,46%  n-list
 3)    7        7961,76  1137,39   64,11%   2551,27   364,47   20,54%  n-list-draw
 4)    7         324,36    46,34    2,61%    318,36    45,48    2,56%  n-list-input
 5)    7          39,22     5,60    0,32%     31,44     4,49    0,25%  _nlist_setup_user_vars
 6)    7          27,86     3,98    0,22%     27,86     3,98    0,22%  _nlist_status_msg
 7)    2          24,35    12,18    0,20%     24,35    12,18    0,20%  _nlist_cursor_visibility
 8)    1          27,05    27,05    0,22%     10,37    10,37    0,08%  _nlist_exit
( n-panelize < ~/lsoflsof; )  14,19s user 0,29s system 94% cpu 15,319 total