Touchbar: animation delay

Describe the bug
new version of BTT has problem with animation - pause between changing of button size and fill space.
see video

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

Device information:

  • Type of Mac: Macbook Pro 13' 2018
  • macOS version: Mojave 10.14.2
  • BetterTouchTool version: 2.683

Experiencing it as well in other cases (updating widgets via webserver API)