Hello,
The space between most letters is completely inconsistant. It needs to be adjusted so it somehow looks "similar" and there is no useless space. If you're using the free version of Calligraphr, you can't adjust kerning/spacing as far as I know. So you need to do it with another software.
In the font you submitted, just take a look at its name. There is a huge space between the "r" and the "a" and the "o" seems lost between the "s" and the "n". You should start by adjusting spacing, and then kerning. Here is a very useful link to learn more about it:
http://designwithfontforge.com/en-US/Spacing_Metrics_and_Kerning.htmlFuso orario: CEST. Ora sono le 12:16