WordPress is rather big, having more than 200K function calls on a typical request to a blog post. However, when using the default Twenty Fifteen theme, the performance is not that bad, as you can see from http://ldr.io/1cbbomp (VPS server with 3CPUs and 4GB of RAM).
I've just checked your blogging engine and it looks very minimalistic. I like it.
I've just checked your blogging engine and it looks very minimalistic. I like it.