UE4.10 HTML5 new empty project has over 63MB- how to reduce it?

Is exist any way to reduce HTML5 starter files size?

I build new FPS project in version 4.10, no textures, no meshes, no starter content, only what I see when I open brand new project. When I package project for HTML5, files size is over 63mb.

If someone, who I want to show my project, has fast internet and desktop or laptop is fine.
If I use Samsung Galaxy Tab 2, it is impossible to open it in any web browser. The file is too large and there is no enough memory to open it.

Previous posts, don’t tell to much about reducing files size: