If you do not use sorting at all, then you can turn of the system wide setting (Configuration->Server Settings->System Tree Sorting. select the option 'Disable System Tree sorting (no systems are sorted regardless of their sorting status'. Hope that helps.
I apologize, I was incorrect when I said we don't do any other sorting. I thought I looked but turns out we do, on our laptops and desktops so I can't turn of sorting server wide.