How to *reduce* sensitivity of Magic Mouse?

Since upgrading to an M1 Mac / Monterey, I've found that MS Word 2019 is highly sensitive to tiny mouse movements, with the result that I often have to select text 2 or 3 times, because the selection moves up or down with tiny changes in my finger position on the mouse.

Is there a setting in BTT that allows me to reduce the sensitivity of the mouse in MS Word so that these tiny movements are ignored? I've tried adjusting Zoom/Pinch/Scroll > "Set scroll + modifier sensitivity", but this does not appear to address my need.