The standard layout of your home page can be changed individually by you. Please choose Edit layout.
The single tiles can be changed in its place and its size. You can also deleted from the view.
If you want to get a smaler tile, it can be helpful to delete the tile first and to place it again.
If you want to change the size, please use the arrows within the single tiles.
Should you remove a tile and want to add it later again, the object will be further on
available in the selection list in the right frame.
Please do not forget at the end Save layout.
Restore standard can help to reset the settings.