Pcsx2 screen changing ?

It's like this. I'm using this emulator for Play station 2 and this unfortunately happens in only one game which is "Resident evil Code veronica". Every time i start up the game after the play station 2 intro and the opening of the game starts, It suddenly zooms in then returns to normal screen size back and forth, over and over again i need help guys and this is also for other people who are experiencing the same problem :D

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-Byshop