Hi OP here. I just realized the file isn't instantly visible, so I will give a bit of clarification to what slider I'm referring to. I'm referring to the HSB Sliders mode for the color selector, but it would also apply to CMYK and RGB.
Do you mean slider triangle or slider? How big is your cursor? You can also type number directly or highight number and use arrow key or Shift + arrow key.
If you are clicking on slider to move triangle or stop try clicking just beneath slider where you want to position slider triangle.
I'm talking about the sliders not the triangle. Refer to the image. The sliders are so thin I regularly misclick which slider I'm pressing. I'd like the option to make them thicker, or to have them be thicker in general