Size of installations on Windows 10

Windows 10 Pro 64bit reports that the v1.0.174 installation takes up 485MB of disk space, which is more than most of my applications including Firefox at 370MB. Is that normal? For perspective, IrfanView immediately above on the list takes up just 6.50MB.

The app is built on top of the Chrome browser, so it should roughly be the size of a browser on disk.

the JoplinPortable.exe is just 110MB … (is it packed ?)