Frightening lousy picture quality

Property me this thing bought a year ago for the skiing, the same with all kinds of accessories (all in all about 450, -). The concept of water resistance, display and remote control I liked, I also read good reviews also compared with GoPro. After the first shots, I thought, the device must be broken. Despite the highest resolution and frame rate of extreme jaggies on each edge, and jerky playback when panning or fast moving subjects. Have it with sample recordings by telephone fault description to the seller (Action Cam-Online Shop) sent. Could not find something wrong!?, But nevertheless sent another copy. Dear me it would have been to cancel the purchase. Unfortunately too late. Did the Cam placed in the ark, and depreciated.
Have they now taken again for skiing. Same sobering poor quality. And we're not talking about gradual differences, you can not view these clips, do hurt your eyes! I still believe that this can not be normal. So you really need a Actioncam not.
I think there is a reason why GoPro has become such a popular and drift hardly anyone knows.