Character legs while performing an emotion

What this problem is related to? (e.g. Broken model or texture / Incorrectly placed model / Particle Effect / Animation / Collision problem / etc. ): Animation

Location/Coordinates (/pos, if relevant):

Describe the problem: Performing an emotion make legs shake to much.

List the steps that occurred before the problem appeared (if relevant):

Can you reproduce the problem? (if relevant): Yes.

Screenshots/Videos (if available):