Double Tap on Magic Mouse Registers Triple Input

I have a small issue with my Magic Mouse. I’ve configured it so that a light tap on the left side of the Multi-Touch surface triggers a left click. However, when I tap twice in quick succession, it registers a third input. For example, if I tap the number 7 twice in a row on the calculator app, instead of “77”, it shows “777”.

Type of Mac: MacBook Pro 14”
macOS version: 14.6.1 (23G93)
BetterTouchTool version: 4.643 (46431)