Wierd I don’t think I’ve ever had scroll bar bigger than column but I also use widescreen monitors. The only one I think is too big is the reports one. But I understand that was a request to be bigger.
The reason of big scrollbars is lack of touch scroll for reports. I’ve implemented touch scroll for reports but after a lot of hacking I’ve noticed pivot table columns becomes non-draggable with mouse because whole report scrolls with mouse. So I made a rollback. I’ll try to find a different solution.