Ultherapy or thread lift?

Hi I had minilift, and voluma before. but I still considering to correct my mid center of face. such as side of nose to side of mouth, it look loose and I like tight face Is ultherapy works or shilhouette lift better? I had shilhouette lift before and felt it was short term result. But I find other doctor seems good at it.so I'm thinking second try. Or Also I had generic machine of ultherapy before.i didn't felt it's really working either I already have filler, so I need advice except filler.