Very Poor Pre roll quality and missing recording in Motion zones

Hi, I've just installed a Doorbell 4 and not impressed so far(first time user).First issue is the pre roll quality is terrible , I mean very poor an unusable. I've looked into this and seen many others report the same. What can be done to resolve this and get better quality?Also, I have rebooted it an removed the device prior to this and no difference.Secondly, It doesn't not record anything when an activity is triggered in the motion zones set unless they're literally near up the camera. I've turned up motion sensitivity near max.Please help