Bones move too much of the mesh

Support Animation and Rigging
1

Anyone has any quick fix ideas?, I’m useing the riggify armature plugin in blender.

Thanks!

2

Check your bone weighting, something you didn’t bother to show in the video !
You have very little geometry or loops around the shoulder area so if a single vertex moves there is nothing to smooth out the movement between the other vertices

I see no links to your blend file either, why not ?, this is something you should be routinely supplying for ALL support questions.!!!