Moreover, at the present time VR visual technology is not good enough to respond instantly to every move of the user. Often a user's head will have turned 30 degrees, while the computer is still trying to calculate the image that should be presented.
由於目前視覺的技術層次還做不到即時反應，往往視線已經轉動三十度，但電腦還來不及計算出對應的圖像。