how to rearrange the sizes from smaller to larger in front end

i am using your plugin to display the available sizes of a product,

https://prnt.sc/tyjYOeZ8IMPJ

like XS S M L XL 3XL etc, in front end as you can see its a mess,

if i go to backend of WP and use the arrows doesnt work , although we have like 300 sizes there its impossible to do it.

How can i achieve it with php code?