When using the new infinite scrolling, it is a jarring user experience to have a big grey "loading" screen thrown up when the scrollbar is moved. As a user it throws me out of my immersion in the data and makes me think "big grey box says loading".
It's fairly easy to solve these usability issues by giving control over whether or not the "loading" is displayed, when it is displayed, whether or not the grey box is displayed, and when the previous rows are cleared.
Is it possible to do one or more of:
1: leave blank alternating colored rows in place whilst the grid is busy, and optionally display .. as a placeholder until the new rows become available
2: choose whether or not to display the "loading" message
3: choose to display the "loading" message, but only after X seconds have elapsed
4: leave the existing rows displayed until the new rows are ready for display
If such things were possible then the user experience of the grid would be vastly improved and allow the user to immerse in the data, not to think about "big grey box says loading".