why my cue point in performance mode is not same with the hot cue position,is my setting any problem ?

Did you manually store the hot cue while the track was playing or did you align the playhead on the waveform and record the hot cue?

i save my hot cue and memory cue point is no problem,but when i press cue button,only the problem is the display cue position is not at the current correct point .

Do you have the hot cue set to GATE mode so it only plays if the track is playing? If so, you can press the hot cue button, then press the CUE button and it will create the main cue point at that hot cue, directly on the beat.

can you step by step tell me how to setting in the GATE?thx

HOT CUE is no problem.
Save Memory cue point is no problem .the save cue point is red colour 

but when i save the cue point ,is no problem

only the problem is when i press back the cue,our track cue point is not at the currently position.

You can change the GATE settings in Rekordbox DJ's Preferences.

i find out the problem is, when i using external to my led no problem,all correctly.

when i move back rekordbox to my macbook display,the happen is the same,i think is the my macbook screen resolution problem,when i move to external,the cue point normal back .

Interesting -- a possible display issue. I'll pass this on to our rekordbox team for investigation. Can you tell me which Mac hardware you're using (go to the Apple > hold the Option key and click System Information), I need to know the Model Identifier. If you could also tell me the operating system version and the resolution of the internal and external displays.