Hello! Maybe this is already common knowledge but I only found out about it a few days ago, so thought I'd share just in case.
Anyway, if you're moving a slider and find it's too sensitive, you can hold Alt* down to reduce the sensitivity. I find this especially useful for the Exposure and Rotation tools.
You can also use your mouse wheel to adjust sliders in small increments (e.g. the Exposure slider by 0.1 EV) as long as the mouse pointer is over the slider at the time. (not sure how well this works with trackpads)
* on Windows at least; not sure about Mac