Play In Editor takes forever to play

Every time I hit play in editor, it takes around 15-20 seconds to load the level. I thought that it could be all the blueprints using the “Begin Play” node that’s causing the long load times. Is there way to find out what’s causing this?

Are your blueprints marked dirty every time?
Try uncheck Edit → Editor Preferences → Level Editor → Play → Auto Recompile Blueprints