PTC Mathcad Prime 12 Scrolling Speed Kudos

Many of my Mathcad worksheets are large (50+ pages).  As the worksheets get larger, the screen refresh rate becomes so slow when using the drag slider bar that scrolling through the worksheet becomes very difficult.   This has always been key source of frustration when using Mathcad for large models.

I had been working on a large worksheet for a bit after upgrading to Mathcad 12 when I realized that the scrolling was as responsive as any Microsoft Word document – very smooth with no noticeable lag up to any reasonable scroll rate!  That was not one of the explicitly stated new features in Mathcad 12 – so I didn’t notice it immediately (sometimes you don’t notice the things that just work the way you’d expect them to work).  I really appreciate some of the other enhancements in the Prime 12 release like Find/Replace with subscripted variables (another large worksheet issue) and the enhancements for native plots, but the scrolling improvement ranks near the top!