Why is the total number of commits smaller?

[Xiaokang2022]

When I get it using the link below:

<img align="center" width="400" src="https://github-readme-stats.vercel.app/api?username=Xiaokang2022&theme=transparent&show_icons=true&hide_border=true&show=reviews&hide_title=true&hide=contribs" />

Here's what it looks like:

But when I add &include_all_commits=true, it looks like this:

Is this number of commits correct? Why is the total number of commits smaller???