SOLVED: Razor edits - zooming in get slower and slower

How to reproduce: 1. Make Razor edit on one track from its start to 10 hours (I work in post production and this time range and even larger is normal) 2. Get full unzoom(zoom out) 3. Start to zoom in continuously. From some zoom values you may notice how gui refreshing becames slower and slower. When arrange visible time measures in seconds it get so slow that I literally can barely move item or make any other edits. Is that normal? (All defer scripts are off)

I think we can improve this, thanks for the report.

Thanks for confirmation!

7.16 update successfully solved it. Thanks!