How to make loop smaller in Tikz-cd

like this?

with help of looseness=... from TikZ I reduce upper loop:

\[
\begin{tikzcd}
i \arrow[r,"\alpha"] & j \arrow[out=120,in=60,loop,looseness=3, "\beta_1"]
 \arrow[out=240,in=300,loop,swap, "\beta_2"]
\end{tikzcd}
\]

You can use just the loop above, loop right, ... keys without worrying about the details.

\documentclass[border=2mm]{standalone}
\usepackage{tikz-cd}
\begin{document}
\begin{tikzcd}
i \arrow[r,"\alpha"] & j \arrow[out=120,in=60,loop,"\beta_1"]
 \arrow[out=240,in=300,loop,swap, "\beta_2"]
\end{tikzcd}
\begin{tikzcd}
i \arrow[r,"\alpha"] & j \arrow[loop above,"\beta_1"]
 \arrow[loop below, "\beta_2"]
 \arrow[loop right, "\beta_3"]
\end{tikzcd}
\end{document}