My brand new iPhone 6s Plus is really slow and freezes up
My brand new iPhone 6s Plus is really slow and freezes up.
When I am using apps.
When I am on using wifi.
Apps freeze, downloads take forever, call quality is terrible, and in general the phone is just super slow.
This is by far the worst performance of any iPhone I have ever experienced, and I have owned every version.
Please someone tell me it gets better. How can I fix this mess?