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Hello, I have quite wide tree of pages and I had to use Content Cache to speed up page loading. I installed it, in the template I added tags around the whole body

</__body>
{cache_cms tags="Content" current_url=1}
this is my code before content
{content}
this is my code after content
{/cache_cms}
<__body>

Now, when I update data inside the page content - text inside the textarea - everything is correct, but when I call some another module inside the page content and I update content of this module, the changes doesn't show up in frontend. Illustratively:

Content type:
content

Title:
Photogallery

Menu text:
Photogallery

Parent:
My parent

Content:
text before the gallery module content
{Gallery dir='photos'}

... when I change text 'text before the gallery module content', it shows up in the frontend and everything is ok. But when I, for example, add photos to my 'photos' gallery, new photos doesn't show up in the frontend.

How can I achieve correct behaviour?
I hope my problem is understandable