- Lightroom Version
- Lightroom Classic version: 9.3
- Operating System
- Windows 10
9.3 is supposed to make the develop sliders more responsive. I'm finding the opposite, at times. I have a fast PC and SSD disk and previously this was very slick. Now when I drag the sliders (shadows and texture in particular) nothing changes until 2 or 3 seconds after releasing the mouse. Also while dragging I am getting large rectangular flashing boxes appearing at random on the screen. Any one else seen this?