Make animations smoother, rounder corner radius or give functionality to do so

[arpanbag001]

I love the library, however, the animations are not as good as actual Facebook app.
Here is a demo project on github, which is having near perfect implementation of the UI, with smoother animation and proper background: https://github.com/ngohado/Facebook-Reaction
Please, if possible update this library, or at least give functionality to change animation delay and background corner radius.

Thanks in advance!

[pgreze]

Crosspost for reference: #21 (comment)