alexander-makarov/ExpandCollapsePanel — pull request #1 by giacomodrago (2014-04-03 10:40:13+00:00)
Title: Binding MouseDown instead of Click event

Excellent component.

I don't know if you already did it on some branch or tried this and reverted because of some unwanted side effect, however I am now binding MouseDown instead of Click and, at least on my configuration (.NET Framework 4.0 on Win7 x64), the expansion/contraction is much more responsive to rapid clicks, especially when animation is disabled.