Make an option to remove useless fields that take huge space on screen:
- file type
Also, time field could be formatted in more compact way (like ls -l does, or even more compact):
%Y/%m/%d for more then a week old files
%w %H:%M for more then a day old files
%H:%M:%s for newer files
to maintain sort order variable mod could contain 1-letter prefix which would not be shown, but used in sort operations.