Enlarging or dragging the canvas is not smooth （Mac Sierra 10.13)

[dyw93914049]

Hey guys，Enlarging or dragging the canvas is not smooth as Win,I have tried Photoshop 2017 and 2018,but this problem still here.

Could you help me please?

[gener7]

See if these tips will help:  Optimize performance Photoshop CC

and this: Troubleshoot Photoshop graphics processor (GPU) and graphics driver issues

[dyw93914049]

thanks,I've checked my preference and make sure that this graphics works, in addition ,PS 2015.5 could work perfectly except 2018,perhaps because of the Macbook's Touch Bar.