Increase the morphing quality to smooth out morphed lines.
 How to set a morphing sequence's quality level
How to set a morphing sequence's quality level
                                                            - In the Timeline or Xsheet view, click on a cell in your morphing sequence.
                                                                     
                                                                
- Do one of the following:
- In the Tools toolbar, select the Morphing
tool.
- Press F3.
- In the Tool Properties view, adjust the Quality level.
                                                                    