Abaqus - Why the Abaqus explicit (Quasi-static) analysis gives that pretty much bouncy result?

In real life, the stent shown in the video deploys without any bounciness. I used Abaqus built-in hyperelastic material properties for the stent, and elastic and density properties for the aorta and leaflets. Analysis has general contact properties with tangential contact with 0.2 friction coefficient with the penalty, and normal contact with hard contact properties.