exported projetc in storyline 2 is much heavier than storyline 1

Hi to everybody!,

I have several projets done with storyline 1 . When I export them , the result is much heavier in storyline 2 than in storyline 1.

Example : when I export this projet in STY 1

https://drive.google.com/file/d/0BwQ9OGBQH3wiUGN5alhQZnhsSXc/view?usp=sharing  (you are free to use the template if you like it...)

the weight with standart option is 54,8 MB, but if import it to STY 2 and afterwards export it, the result is (also standart option) 167 Mb !!.

This project has got several videos

I exported several times and  I checked I had standart options always set with same result.

If I choose web option with android and IOS I got 360 Mb!.

Is this normal? what is happening?

Thanks in advance

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