How to prevent multiple windows from minimizing with single scroll action?

I'm having an issue with mouse scroll events in BetterTouchTool. When I scroll down on a window's title bar to minimize it, sometimes it also minimizes other windows that happen to have their title bars in the same location behind the active window.

I found that setting a high scroll repeat delay helps prevent this, but this setting seems to affect all wheel actions globally. As a result, other scroll functions (like volume control when hovering over the menubar) become very slow.

Is there a way to:

  1. Make BTT handle only one scroll event at a time specifically for window minimizing?
  2. Or set different scroll repeat delays for different actions?

Thanks in advance for any help!