What are my BTT clicks "sticky"?

I sometimes experience strange behavior where a single click of my Magic Mouse behaves more like a click-hold. It is more pronounced in some apps than others, for example programs like Excel where you click and hold to move tabs and cells around, in Lightroom where you click-hold to temporarily zoom in, etc. As fast as I try to click, I still sometimes have this happen. I've gone through all of the menus and can't seem to find a setting to control this behavior. It happens on all my computers, and it goes away when I disable BTT.

And advice appreciated!

I too have the exact same issue. It is extremely noticeable in my CAD software. Did you ever get to the bottom of it?