Finding Perun quite slow. Rendering 98 pages takes 10s on my Macbook Pro

E.g. when I touch an .md file:

[markdown] - parsed 1 markdown files
[render] - rendered 98 pages
[render] - rendered 98 pages
[collection] - rendered collection index.html
Elapsed time: 9.073 sec

@petrus is your code publicly available? I find it odd that so many pages are re-rendered because of one markdown file