Smarter Numerical sort

Got assets that are numerical. The sorting is really annoying and not intelligent. e.g. the list shows in order:
1, 15, 2, 25, 3, 35 instead of 1, 2, 3, 15, 25, 35
I know we are eventually going to be able to sort columns ourselves, but even then, please can this be added as it will probably still have the same issue.