In the Tone Mapping persona, the sliders for various adjustments such as Exposure, Black Point, etc. hesitate when making adjustments. In other words, you can slide a slider but the effect doesn't show immediately. This is using OpenGL based on the problems encountered with the clone tool using Metal. Really makes it tough to do adjustments when you have to guess where to put the slider, then wait for the change to happen. Makes it very much trial and error as opposed to real-time.