Storyline file changing size to a bigger file after cropping and taking out images.

Hi everyone, I am publishing a storyline file for the first time. Yesterday the file was bigger than 30MB being 32ish. This morning I have gone through cropped photos within the module, I have a video that I have added from stream. I have taken some images out and have published again and it has come back even BIGGER at 45MB!!!!!! I am not sure what to do now. If anyone can lend a hand that would be awesome I also deleted the master slides I did not need. I have published a few times, so not sure if that has done some damage and it thinks there is more in the module than what actually is?