The resolution of video material is large, and the resolution of engineering file is small. The resolution of video files is artificially reduced, and the load of real-time preview is too heavy when editing, and it begins to shake.

Solution:

1. Take a look at the video properties, and make the project file and video properties consistent.

2. If you don't know, build a project directly, then import the material, and then drag the material to the timeline. A new feature of CS6 is that it is found that the project does not match the material. At this time, it will ask whether it matches automatically. If it is, it is automatically matched.

3. If the hardware supports mercury acceleration, set it. CS6 doesn't know AMD's graphics card yet, and only supports N cards. If it is an AMD graphics card, you may wish to change it to CC version.