Earlier this year, around 3 months ago, when i bought my brand new Macbook Pro 15" Iris Pro (the one without discrete graphics card). I was i disappointed in th

Earlier this year, around 3 months ago, when i bought my brand new Macbook Pro 15" Iris Pro (the one without discrete graphics card). I was i disappointed in the performance of the UI, and i uploaded 3 videos to showcase the problems. A 2000$ dollar machine stuttering when i drag windows around. https://www.youtube.com/watch?v=fqUHfjD6qWc&index=1&list=UUEhez4TDTdadtDShVrCE1kA https://www.youtube.com/watch?v=fqUHfjD6qWc&index=1&list=UUE... https://www.youtube.com/watch?v=o1xhpFRDNdQ&list=UUEhez4TDTdadtDShVrCE1kA&index=2 https://www.youtube.com/watch?v=o1xhpFRDNdQ&list=UUEhez4TDTd... https://www.youtube.com/watch?v=cNGYjFRQrSM&index=3&list=UUEhez4TDTdadtDShVrCE1kA https://www.youtube.com/watch?v=cNGYjFRQrSM&index=3&list=UUE...