Many Events in a game is a problem?

I'm making a demo of my game but there are now 570 events in the project. It is because I has to duplicate the events of the level1 to the level 2. Is it a problem? If yes, what can i make to don't have to duplicate the event lines in each fase (even when each fase have especific event lines.)?

go to your event sheet, right click as if adding a variable, you will see "include event sheet"

create a new event sheet(do not create another layout), put all duplicated events in a the new event sheet then add it to the event sheets specific to the level.

delete the redundant events in the level specific sheets.

Thank you bro