Mouse lag in newer Unity games with Window Snapping active

Describe the bug
I'm actually trying to track down an issue with Unity ( in games built with older engine versions, there seems to be no issue when BTT is active, but in later versions (2019), there is significant mouse lag in games when Window Snapping is active in BTT, especially when dragging around the edges of a full screen window. Has this come up before for other applications? Something clearly changed with Unity, and if there's anything relevant that might help their QA out that'd be great.

Affected input device (e.g. MacBook Trackpad, Magic Mouse/Trackpad, Touch Bar, etc.):
MacBook Trackpad and regular mouse


Device information:

  • Type of Mac: MacBook Pro 15", Mid 2014
  • macOS version: 10.14.6
  • BetterTouchTool version: 3.186 (1365)

Additional information (e.g. StackTraces, related issues, screenshots, workarounds, etc.):